- Mangroves Threatened by Sea Level Rise Could Disappear by ... ›
- Louisiana Faces Faster Levels of Sea-Level Rise Than Any Other ... ›
- Worst Case Sea Level Rise by Century's End Could Be Doubled ... ›
EcoWatch Daily Newsletter
By Greta Thunberg
- Greta Thunberg calls for urgent action to address the climate and ecological crisis.
- She reminds the world of the promises made to children and grandchildren — a promise they expect to be kept.
- The proposals being discussed and presented at the moment are 'very far from being enough.'
For many people, the holidays are rich with time-honored traditions like decorating the Christmas tree, lighting the menorah, caroling, cookie baking, and sipping from the unity cup. But there's another unofficial, official holiday tradition that spans all ages and beliefs and gives people across the world hope for a better tomorrow: the New Year's resolution.
Benefits of Chamomile Tea<p><strong>Sleep More Soundly</strong></p><p>Pick your grandmother's brain about the best way to fall asleep, and she might tell you to down a nice glass of warm milk. But if you consult with science, research shows that chamomile might be a better option. That's because it contains an antioxidant called apigenin, which can <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2995283/" target="_blank" rel="noopener noreferrer">promote sleepiness and reduce insomnia and other sleep problems</a>.</p><p>Two research studies even confirmed the power of chamomile throughout the day and before bed. In one of those studies, postpartum women who drank chamomile for two weeks <a href="https://www.ncbi.nlm.nih.gov/pubmed/26483209" target="_blank" rel="noopener noreferrer">experienced better sleep quality than the control group who didn't</a>. Another research effort measured how fast people could fall asleep. Those results illustrated that participants who consumed 270 milligrams of chamomile extract twice daily for 28 days <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3198755/" target="_blank" rel="noopener noreferrer">fell asleep 15 minutes faster than the control</a>. The chamomile group also had considerably fewer sleep disruptions. </p><p><strong>May Be Able to Keep Your Gut Healthy</strong></p><p>Though the following studies used rats as the subjects, research shows that chamomile can potentially play a beneficial role in digestive health. According to that research, the anti-inflammatory properties in <a href="https://www.ncbi.nlm.nih.gov/pubmed/24463157" target="_blank" rel="noopener noreferrer">chamomile extract may be able to protect against diarrhea</a>. Additionally, chamomile may be an effective way to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4177631/" target="_blank" rel="noopener noreferrer">stop the growth of bacteria in our stomachs that contribute to ulcers</a>.</p><p><strong>Reduces Stress and Anxiety</strong></p><p>Few things are more relaxing than curling up with a good cup of tea, so it's logical that chamomile tea can serve a stress reducer. While it lacks the potency of a pharmaceutical drug, long-term use of chamomile has been shown to <a href="https://www.ncbi.nlm.nih.gov/pubmed/27912875" target="_blank" rel="noopener noreferrer">"significantly" reduce general anxiety disorders</a>. In general, chamomile can act almost like a sedative, and many people enjoy the tea because it puts them in a calm and relaxed state almost immediately. </p><p><strong>Boosts Immune Health</strong></p><p>Vitamin C and zinc are common over-the-counter supplements that people often turn to when they're hoping to avoid becoming sick. While scientists admit that more research must take place to prove chamomile's impact on preventing ailments like the common cold, the existing studies do show promise in this area. </p><p>One study had 14 participants drink five cups of the tea every day for two consecutive weeks. Throughout the study, researchers collected daily urine samples and tested the contents before and after the consumption of the tea. Drinking chamomile resulted in a significant increase in the levels of hippurate and glycine, <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2995283/" target="_blank" rel="noopener noreferrer">both of which are known to increase antibacterial activity</a>. Inhaling steam from a pot of freshly brewed chamomile tea may also ease the symptoms of nasal congestion.</p><p><strong>Minimizes Menstrual Cramps</strong></p><p>This one may come as a surprise, particularly to readers who have tried every possible over-the-counter treatment to reduce period pain. Several research studies have proven that chamomile tea may be able to minimize the pain and cramps that occur during menstruation. Women in that same study also dealt with lower levels of anxiety that they typically felt because of menstrual cramps.</p><p><strong>Help Diabetes and Lower Blood Sugar</strong></p><p>For people with diabetes, regulating blood sugar levels can be a matter of life or death. And while chamomile will never replace prescription-strength drugs, it's believed that it can prevent an increase in blood sugar. A 2008 study on rats showed that chamomile could have a <a href="https://pubs.acs.org/doi/abs/10.1021/jf8014365" target="_blank" rel="noopener noreferrer">moderate impact on the long-term risk of diabetes</a>.</p><p><strong>Might Improve Your Skin</strong></p><p>Ever wondered why there's been an influx of chamomile-infused cosmetic products? The reason why so many manufacturers now include chamomile in their lotions, soaps, and creams is because it <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5074766/" target="_blank" rel="noopener noreferrer">acts as an anti-inflammatory on our skin</a>. That means it may be able to soothe the puffiness that plagues us as we age. Those same anti-inflammatory properties can be vital in restoring skin health after we've received a sunburn. </p><p>Before discarding your used chamomile tea bags, try chilling them and placing them over your eyes. Not only will this help with the puffiness, but it can drastically light the skin color around the eye.</p><p><strong>Help With Heart Health</strong></p><p>Some of the most beneficial antioxidants we put into our bodies are what are known as flavones, and chamomile tea is chock full of them. Flavones have the potential to lower both blood pressure and cholesterol levels, which, when elevated, <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4814348/" target="_blank" rel="noopener noreferrer">can lead to heart disease</a>.</p>
Why Everyone Is Drinking Chamomile Tea<p>Now that you know so much about the wonders of chamomile, it shouldn't come as a surprise why the tea is so popular with people of all ages. In addition to tasting great, chamomile offers up benefits that boost the health of body parts both inside and out. As you ponder your own New Year's resolutions, think about how healthy and natural vitamins, supplements, plants, and oils can help guide you on your own personal path to improvement. Happy New Year!</p>
In 2010, world leaders agreed to 20 targets to protect Earth's biodiversity over the next decade. By 2020, none of them had been met. Now, the question is whether the world can do any better once new targets are set during the meeting of the UN Convention on Biodiversity in Kunming, China later this year.
- Ocean Scientists Create Global Network to Help Save Biodiversity ... ›
- 5 Reasons Why Biodiversity Matters - EcoWatch ›
- 26 Organizations Working to Conserve Seed Biodiversity - EcoWatch ›
- The Top 10 Ocean Biodiversity Hotspots to Protect - EcoWatch ›
- New Platform Shows How to Protect Biodiversity and Save Planet ... ›
- These Scientists Are Listening to the Borneo Rainforest to Protect ... ›
By Andrew Rosenberg
The first 24 hours of the administration of President Joe Biden were filled not only with ceremony, but also with real action. Executive orders and other directives were quickly signed. More actions have followed. All consequential. Many provide a basis for not just undoing actions of the previous administration, but also making real advances in public policy to protect public health, safety, and the environment.
- Here Are Biden's Day One Actions on Climate and Environment ... ›
- UCS Offers Science Advice for Biden Administration - EcoWatch ›
A first-of-its-kind study has examined the satellite record to see how the climate crisis is impacting all of the planet's ice.
- 'Ghost Forests' Are an Eerie Sign of Sea-Level Rise - EcoWatch ›
- Sea-Level Rise Takes Business Toll in North Carolina's Outer Banks ... ›
- Sea Level Rise Is Locked in Even If We Meet Paris Agreement ... ›
By Ana Maldonado-Contreras
- Your gut is home to trillions of bacteria that are vital for keeping you healthy.
- Some of these microbes help to regulate the immune system.
- New research, which has not yet been peer-reviewed, shows the presence of certain bacteria in the gut may reveal which people are more vulnerable to a more severe case of COVID-19.
You may not know it, but you have an army of microbes living inside of you that are essential for fighting off threats, including the virus that causes COVID-19.
How Do Resident Bacteria Keep You Healthy?<p>Our immune defense is part of a complex biological response against harmful pathogens, such as viruses or bacteria. However, because our bodies are inhabited by trillions of mostly beneficial bacteria, virus and fungi, activation of our immune response is tightly regulated to distinguish between harmful and helpful microbes.</p><p>Our bacteria are spectacular companions diligently helping prime our immune system defenses to combat infections. A seminal study found that mice treated with antibiotics that eliminate bacteria in the gut exhibited an impaired immune response. These animals had low counts of virus-fighting white blood cells, weak antibody responses and poor production of a protein that is vital for <a href="https://doi.org/10.1073/pnas.1019378108" target="_blank">combating viral infection and modulating the immune response</a>.</p><p><a href="https://doi.org/10.1371/journal.pone.0184976" target="_blank" rel="noopener noreferrer">In another study</a>, mice were fed <em>Lactobacillus</em> bacteria, commonly used as probiotic in fermented food. These microbes reduced the severity of influenza infection. The <em>Lactobacillus</em>-treated mice did not lose weight and had only mild lung damage compared with untreated mice. Similarly, others have found that treatment of mice with <em>Lactobacillus</em> protects against different <a href="https://doi.org/10.1038/srep04638" target="_blank" rel="noopener noreferrer">subtypes of</a> <a href="https://doi.org/10.1038/s41598-017-17487-8" target="_blank" rel="noopener noreferrer">influenza</a> <a href="https://doi.org/10.1371/journal.ppat.1008072" target="_blank" rel="noopener noreferrer">virus</a> and human respiratory syncytial virus – the <a href="https://doi.org/10.1038/s41598-019-39602-7" target="_blank" rel="noopener noreferrer">major cause of viral bronchiolitis and pneumonia in children</a>.</p>
Chronic Disease and Microbes<p>Patients with chronic illnesses including Type 2 diabetes, obesity and cardiovascular disease exhibit a hyperactive immune system that fails to recognize a harmless stimulus and is linked to an altered gut microbiome.</p><p>In these chronic diseases, the gut microbiome lacks bacteria that activate <a href="https://doi.org/10.1126/science.1198469" target="_blank" rel="noopener noreferrer">immune cells</a> that block the response against harmless bacteria in our guts. Such alteration of the gut microbiome is also observed in <a href="https://doi.org/10.1073/pnas.1002601107" target="_blank" rel="noopener noreferrer">babies delivered by cesarean section</a>, individuals consuming a poor <a href="https://doi.org/10.1038/nature12820" target="_blank" rel="noopener noreferrer">diet</a> and the <a href="https://doi.org/10.1038/nature11053" target="_blank" rel="noopener noreferrer">elderly</a>.</p><p>In the U.S., 117 million individuals – about half the adult population – <a href="https://health.gov/our-work/food-nutrition/2015-2020-dietary-guidelines/guidelines/" target="_blank" rel="noopener noreferrer">suffer from Type 2 diabetes, obesity, cardiovascular disease or a combination of them</a>. That suggests that half of American adults carry a faulty microbiome army.</p><p>Research in my laboratory focuses on identifying gut bacteria that are critical for creating a balanced immune system, which fights life-threatening bacterial and viral infections, while tolerating the beneficial bacteria in and on us.</p><p>Given that diet affects the diversity of bacteria in the gut, <a href="https://www.umassmed.edu/nutrition/melody-trial-info/" target="_blank" rel="noopener noreferrer">my lab studies show how diet can be used</a> as a therapy for chronic diseases. Using different foods, people can shift their gut microbiome to one that boosts a healthy immune response.</p><p>A fraction of patients infected with SARS-CoV-2, the virus that causes COVID-19 disease, develop severe complications that require hospitalization in intensive care units. What do many of those patients have in common? <a href="https://www.cdc.gov/mmwr/volumes/69/wr/mm6912e2.htm" target="_blank" rel="noopener noreferrer">Old age</a> and chronic diet-related diseases like obesity, Type 2 diabetes and cardiovascular disease.</p><p><a href="http://doi.org/10.1016/j.jada.2008.12.019" target="_blank" rel="noopener noreferrer">Black and Latinx people are disproportionately affected by obesity, Type 2 diabetes and cardiovascular disease</a>, all of which are linked to poor nutrition. Thus, it is not a coincidence that <a href="https://www.cdc.gov/mmwr/volumes/69/wr/mm6933e1.htm" target="_blank" rel="noopener noreferrer">these groups have suffered more deaths from COVID-19</a> compared with whites. This is the case not only in the U.S. but also <a href="https://www.washingtonpost.com/world/europe/blacks-in-britain-are-four-times-as-likely-to-die-of-coronavirus-as-whites-data-show/2020/05/07/2dc76710-9067-11ea-9322-a29e75effc93_story.html" target="_blank" rel="noopener noreferrer">in Britain</a>.</p>
Discovering Microbes That Predict COVID-19 Severity<p>The COVID-19 pandemic has inspired me to shift my research and explore the role of the gut microbiome in the overly aggressive immune response against SARS-CoV-2 infection.</p><p>My colleagues and I have hypothesized that critically ill SARS-CoV-2 patients with conditions like obesity, Type 2 diabetes and cardiovascular disease exhibit an altered gut microbiome that aggravates <a href="https://theconversation.com/exercise-may-help-reduce-risk-of-deadly-covid-19-complication-ards-136922" target="_blank" rel="noopener noreferrer">acute respiratory distress syndrome</a>.</p><p>Acute respiratory distress syndrome, a life-threatening lung injury, in SARS-CoV-2 patients is thought to develop from a <a href="http://doi.org/10.1016/j.cytogfr.2020.05.003" target="_blank" rel="noopener noreferrer">fatal overreaction of the immune response</a> called a <a href="https://theconversation.com/blocking-the-deadly-cytokine-storm-is-a-vital-weapon-for-treating-covid-19-137690" target="_blank" rel="noopener noreferrer">cytokine storm</a> <a href="http://doi.org/10.1016/S2213-2600(20)30216-2" target="_blank" rel="noopener noreferrer">that causes an uncontrolled flood</a> <a href="http://doi.org/10.1016/S2213-2600(20)30216-2" target="_blank" rel="noopener noreferrer">of immune cells into the lungs</a>. In these patients, their own uncontrolled inflammatory immune response, rather than the virus itself, causes the <a href="http://doi.org/10.1007/s00134-020-05991-x" target="_blank" rel="noopener noreferrer">severe lung injury and multiorgan failures</a> that lead to death.</p><p>Several studies <a href="https://doi.org/10.1016/j.trsl.2020.08.004" target="_blank" rel="noopener noreferrer">described in one recent review</a> have identified an altered gut microbiome in patients with COVID-19. However, identification of specific bacteria within the microbiome that could predict COVID-19 severity is lacking.</p><p>To address this question, my colleagues and I recruited COVID-19 hospitalized patients with severe and moderate symptoms. We collected stool and saliva samples to determine whether bacteria within the gut and oral microbiome could predict COVID-19 severity. The identification of microbiome markers that can predict the clinical outcomes of COVID-19 disease is key to help prioritize patients needing urgent treatment.</p><p><a href="https://doi.org/10.1101/2021.01.05.20249061" target="_blank" rel="noopener noreferrer">We demonstrated</a>, in a paper which has not yet been peer reviewed, that the composition of the gut microbiome is the strongest predictor of COVID-19 severity compared to patient's clinical characteristics commonly used to do so. Specifically, we identified that the presence of a bacterium in the stool – called <em>Enterococcus faecalis</em>– was a robust predictor of COVID-19 severity. Not surprisingly, <em>Enterococcus faecalis</em> has been associated with <a href="https://doi.org/10.1053/j.gastro.2011.05.035" target="_blank" rel="noopener noreferrer">chronic</a> <a href="https://doi.org/10.1016/S0002-9440(10)61172-8" target="_blank" rel="noopener noreferrer">inflammation</a>.</p><p><em>Enterococcus faecalis</em> collected from feces can be grown outside of the body in clinical laboratories. Thus, an <em>E. faecalis</em> test might be a cost-effective, rapid and relatively easy way to identify patients who are likely to require more supportive care and therapeutic interventions to improve their chances of survival.</p><p>But it is not yet clear from our research what is the contribution of the altered microbiome in the immune response to SARS-CoV-2 infection. A recent study has shown that <a href="https://doi.org/10.1101/2020.12.11.416180" target="_blank" rel="noopener noreferrer">SARS-CoV-2 infection triggers an imbalance in immune cells</a> called <a href="https://doi.org/10.1111/imr.12170" target="_blank" rel="noopener noreferrer">T regulatory cells that are critical to immune balance</a>.</p><p>Bacteria from the gut microbiome are responsible for the <a href="https://doi.org/10.7554/eLife.30916.001" target="_blank" rel="noopener noreferrer">proper activation</a> <a href="https://doi.org/10.1126/science.1198469" target="_blank" rel="noopener noreferrer">of those T-regulatory</a> <a href="https://doi.org/10.1038/nri.2016.36" target="_blank" rel="noopener noreferrer">cells</a>. Thus, researchers like me need to take repeated patient stool, saliva and blood samples over a longer time frame to learn how the altered microbiome observed in COVID-19 patients can modulate COVID-19 disease severity, perhaps by altering the development of the T-regulatory cells.</p><p>As a Latina scientist investigating interactions between diet, microbiome and immunity, I must stress the importance of better policies to improve access to healthy foods, which lead to a healthier microbiome. It is also important to design culturally sensitive dietary interventions for Black and Latinx communities. While a good-quality diet might not prevent SARS-CoV-2 infection, it can treat the underlying conditions related to its severity.</p><p><em><a href="https://theconversation.com/profiles/ana-maldonado-contreras-1152969" target="_blank">Ana Maldonado-Contreras</a> is an assistant professor of Microbiology and Physiological Systems at the University of Massachusetts Medical School.</em></p><p><em>Disclosure statement: Ana Maldonado-Contreras receives funding from The Helmsley Charitable Trust and her work has been supported by the American Gastroenterological Association. She received The Charles A. King Trust Postdoctoral Research Fellowship. She is also member of the Diversity Committee of the American Gastroenterological Association.</em></p><p><em style="">Reposted with permission from <a href="https://theconversation.com/a-healthy-microbiome-builds-a-strong-immune-system-that-could-help-defeat-covid-19-145668" target="_blank" rel="noopener noreferrer" style="">The Conversation</a>. </em></p>
By Jeff Masters, Ph.D.
The New Climate War: the fight to take back our planet is the latest must-read book by leading climate change scientist and communicator Michael Mann of Penn State University.
- 12 New Books Explore Fresh Approaches to Act on Climate Change ... ›
- Dr. Michael Mann on Climate Denial: 'It's Impaired Our Ability to ... ›
By Tara Lohan
2020 was so bad that even disasters outdid themselves. Last year the United States alone experienced at least 16 weather and climate disasters with losses topping $1 billion each. That's more than twice the long-term average.
Tropical cyclone Eloise deluged Mozambique's Sofala Province with heavy rain and hurricane-force winds on Saturday, killing at least nine, displacing nearly 7,000, and destroying more than 300,000 acres of crops.
Political leaders from around the world appeared online for the first Climate Adaptation Summit on Monday aimed at preparing the planet for the effects of the climate crisis.
- 'All Hands on Deck' Declares Ban Ki-moon at UN Climate Summit ... ›
- Climate Summit Aims to 'Take Ambition to the Next Level' - EcoWatch ›
- UN Urges World Leaders to Declare 'Climate Emergency' at Virtual ... ›
By Dirk Lorenzen
2021 begins as a year of Mars. Although our red planetary neighbor isn't as prominent as it was last autumn, it is still noticeable with its characteristic reddish color in the evening sky until the end of April. In early March, Mars shines close to the star cluster Pleiades in the constellation Taurus.
A Landing Like a James Bond Movie<img lazy-loadable="true" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTUyOTIwMS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY3MDU5MDQ2Nn0.aLE-s5r9YhoJs40XbavhUwUXdY97iykXqo0OO0S5eso/img.jpg?width=980" id="19fa1" class="rm-shortcode" data-rm-shortcode-id="c758d3cd0d3e11fbd5290bb95da86396" data-rm-shortcode-name="rebelmouse-image" data-width="700" data-height="394" />
NASA's Mars 2020 Perseverance rover (shown in artist's illustration) is the most sophisticated rover NASA has ever sent to Mars. Ingenuity, a technology experiment, will be the first aircraft to attempt controlled flight on another planet. Perseverance will arrive at Mars' Jezero Crater with Ingenuity attached to its belly. NASA<p>The highlight of this year's Mars exploration is the landing of the NASA rover "Perseverance" on February 18. Once the spacecraft enters the atmosphere it will be slowed down by friction. The heat shield will surpass 1,000 degrees Celsius. Later, parachutes will deploy to slow it down even more. Roughly two kilometers above the planet's surface, a sky crane comes into play. Four thrusters keep the crane properly oriented.</p><p><span></span>The rover is connected to the crane by nylon tethers. Upon approach of Mars' surface, the sky crane will lower Perseverance down about 7 meters. Once the rover has touched down, the tethers are cut and the sky crane flies off to land somewhere else on the surface.</p><p>Entry, descent and landing takes just seven minutes – the so-called seven minutes of terror. The flight team can't interact with the spacecraft on Mars. Experts have to sit and watch what's happening more than 200 million kilometers away. Radio signals from the spacecraft need about 11 minutes to travel in one direction. When the control center in Pasadena, California receives the message that entry has begun, Perseverance will already be on the ground. There is only one chance for a smooth landing. Any error could mean the mission is lost. The audacious sky crane maneuver would be a great feat in any action movie. But NASA knows how to do it – the Curiosity rover landed with a sky crane in 2012.</p>
Life on Mars?<p>Scientists want to use Perseverance to explore whether there is or ever has been life on Mars. Today the planet is a hostile environment – dry and cold with no magnetic field shielding the harsh radiation from space. Life as we know it can't survive on the Martian surface right now. But billions of years ago, Mars was hotter and wetter and had a shield against radiation. So it is at least plausible that simple microbes developed there. Maybe they live in the soil now, one or two meters below the surface. Perseverance will collect samples to find out. A future mission by NASA and the European Space Agency (ESA) will pick up the samples and return them to Earth. But this won't happen before 2030.</p>
The Long Wait for James Webb<img lazy-loadable="true" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTUyOTIxMS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY2OTM1MDUzNX0.0Jmw-vIz6zuOa7eNsVX2oVzc0L6AFp05cAs4QbzdK6c/img.jpg?width=980" id="9cf3e" class="rm-shortcode" data-rm-shortcode-id="d46a2f73a4a2e32a9775087750c92431" data-rm-shortcode-name="rebelmouse-image" data-width="700" data-height="394" />
The Hubble Space Telescope has been orbiting the Earth for more than 30 years. NASA<p>The Hubble Space Telescope's images of planets, nebulae, star clusters and galaxies are legendary. The cosmic eye, launched in 1990, is likely to fail towards the end of this decade. The James Webb Space Telescope will be its successor. It is scheduled to launch on October 31 with a European Ariane 5 rocket from the Kourou spaceport in French Guiana.</p><p><span></span>The launch date is about 14 years later than planned when the project began in 1997. At almost $10 billion (€8.2 billion), the telescope is more than ten times as expensive as originally conceived. Its namesake James Webb was the NASA administrator during the height of the Apollo project in the 1960s.</p><p>Astronomers expect completely new insights from James Webb Telescope images, such as how the universe came into being, how it developed and how galaxies, stars and planets are formed. The instrument will observe the earliest childhood of the cosmos and photograph objects that already existed in the universe 200 to 300 million years after the Big Bang. James Webb, as the experts call the telescope for short, may even provide information about possibly inhabited exoplanets – planets like ours orbiting stars other than the Sun. </p>
A Sensitive German Camera<img lazy-loadable="true" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTUyOTIxNS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYxOTE0MzY3Mn0.o3aPaW5t0MFkEgeJl0HQ1V9lz6WDxKVGXyYWvpfoYyk/img.jpg?width=980" id="6ff49" class="rm-shortcode" data-rm-shortcode-id="187458ae2291c2aeb3bd36bc1ed777e0" data-rm-shortcode-name="rebelmouse-image" data-width="985" data-height="657" />
The fully assembled James Webb Space Telescope with its sunshield and unitized pallet structures that will fold up around the telescope for launch. NASA<p>The mirror of the James Webb Space Telescope is 6.5 meters in diameter and consists of 18 hexagonal segments. The entire instrument unfolds in 178 steps over a period of several months. Only then – probably in the spring of 2022 – will we see its first images.</p><p>Many communication or reconnaissance satellites only unfold in space. However, not every micrometer is as important as with this telescope. </p><p>NIRSpec, one of the four cameras on board, was built at Airbus in Ottobrunn near Munich. It is made of an unusual material: ceramic. Both the basic structure and the mirrors are made of this very light, hard and extremely temperature-insensitive material. With good reason – the large camera has to withstand a lot in space. It is cooled to around -250 degrees Celsius in order to register the weak infrared or thermal radiation from the depths of space. Plastic or metal bend and lead to blurred images. Ceramic, on the other hand, remains in perfect shape.</p><p>The NIRSpec instrument will examine, among other things, emerging stars and distant galaxies. The ceramic camera is incredibly sensitive – it could register the heat radiation from a burning cigarette on the Moon. Thanks to this precision, astronomers will get completely new insights into the cosmos with the James Webb Telescope and NIRSpec.</p>
No Flight to the Moon but to the ISS<p>It's not very likely that the Orion spacecraft from NASA and ESA will start its maiden voyage to the Moon before the end of 2021. As part of the Artemis-1 mission, it will remain in space for four weeks and will orbit the Moon for a few days. There will be no crew on board for the first flight, but two dummies from the German Aerospace Center, which use thousands of sensors to measure the conditions that human beings would be exposed to. The Orion capsule comes from NASA, while the ESA supplies the service module. The service module, which is being built by Airbus in Bremen, provides propulsion, navigation, altitude control and the supply of air, water and fuel. After problems with an engine test in mid-January, the new NASA large rocket Space Launch System (SLS), with which Orion is supposed to be launched, is unlikely to be operational until early 2022.</p><p><span></span>Matthias Maurer from Saarland is scheduled to fly to the International Space Station (ISS) in October. The flight will be in a Crew Dragon capsule from Cape Canaveral. Maurer will live and work in the orbital outpost for six months. He is currently training to work on numerous scientific experiments. Maurer will be the twelfth German in space.</p><p>So far, Germany has only sent men into space. In mid-March, ESA will start the next application process for astronauts. A few years ago, the private initiative Die Astronautin ("She is an astronaut") showed that there are numerous excellent female applicants.</p>
Two Lunar Eclipses<p>Even if there is no flight to the Moon, sky fans are looking forward to two eclipses this year. On May 26, there will be a lunar eclipse between 9:45 and 12:53 UTC. From 11:10 to 11:28 UTC, the Moon will be completely in the Earth's shadow. It can then only be seen in a copper-red light. This is sunlight that is directed into the Earth's shadow by the Earth's atmosphere – reddish, like the sky at sunset. This eclipse can be observed throughout the Pacific, and will be best viewed in Australia, New Zealand, Hawaii, and Antarctica. In Europe, the Moon will be below the horizon and therefore the eclipse will not be visible.</p><p>This also the case for the partial lunar eclipse on November 19. From 07:18 to 10:47 UTC, the Moon will be partly in the shadow of the Earth. In the middle of the eclipse (around 9:03 UTC) 98% of the Moon will be eclipsed. The spectacle will be best seen in North America, Greenland, East Asia and much of the Pacific, such as Hawaii and New Zealand.</p>
Two Solar Eclipses: One Annular, One Total<p><span>In 2021, the Moon will pass right in front of the sun, twice. On June 10, the moon will be nearly in the furthest point of its elliptical orbit around Earth. So it will be too small to cover the sun completely. In the middle of this eclipse, an annulus of the sun will remain visible. The sun's ring of fire appears between 9:55 and 11:28 UTC for a maximum of four minutes – but it will only be visible in the very sparsely populated areas of northeast Canada, northwestern Greenland, the North Pole and the far east of Siberia.</span></p><p>In the North Atlantic, Europe and large parts of Russia, an eclipse will be seen at least partially. Between 8:12 and 13:11 UTC, the Sun will appear like a cookie that has been bitten into as the Moon covers parts of the bright disk. In some places, the eclipse will last about two hours. In Central Europe, a maximum of one-fifth of the sun will be covered.</p>
Dark Sun Over Antarctica<p>The celestial event of the year will be a total solar eclipse on December 4. In a 400-kilometer-wide strip, the New Moon will cover the sun completely. For a maximum of one minute and 54 seconds, day will turn to night. For that short time, the brightest stars can be seen in the sky and the flaming solar corona can be seen around the dark disc of the Moon.</p><p><span></span>Unfortunately, hardly anyone will get to see this cosmic spectacle because the strip of totality only runs through the Southern Ocean and the Antarctic. From 7:03 to 8:04 UTC the umbra of the Moon moves across the Earth's surface – and perhaps some ships' crews will enjoy the solar corona.</p><p>Only during the few minutes of totality is it possible to look safely at the Sun with the naked eye. During the partial phase or in the case of an annular eclipse, suitable protective goggles are necessary to watch the spectacle. Normal sunglasses are not safe. Looking unprotected into the sun can lead to severe eye damage or even blindness.</p>
Two Giant Planets in Northern Summer and Southern Winter<p>Venus, our other neighboring planet, will be behind the sun on March 26. It is not visible for the first few months of the year. From the end of April through Christmas, it will be visible as an evening star in the sky after sunset. The planet, shrouded in dense clouds, is the brightest object in the sky after the Sun and the Moon. The best visibility will be from September to December.</p><p>The giant planet Jupiter is in its best position of the year on August 20. It then shines in the constellation Capricorn, only disappearing from the evening sky at the beginning of next year. The ringed planet Saturn is also in the constellation Capricorn and can be observed particularly well on August 2. </p><p>Jupiter and Saturn are the stars of summer in the Northern Hemisphere and those of the long winter nights in the Southern Hemisphere. They are in the same area of the sky, almost forming a double star with Jupiter being the brighter of the two.</p>
Shooting Stars in August and December<p>There are certain periods when the Earth crosses the orbital path of a comet and shooting stars are much more likely than on other nights. Many small stones and dust particles are scattered on comet orbits, which light up the Earth's atmosphere for a moment when they enter.</p><p>The Perseids are particularly promising: August 9-13, a few dozen meteors (the technical term for shooting stars) will scurry across the sky per hour. The traces of light will seem to come from the constellation Perseus, near the striking celestial W of Cassiopeia. The Geminids – meteors coming from the constellation Gemini – will be similarly exciting with up to 100 shooting stars per hour, December 10-15.</p>
- What 21 Stars Reveal About the Universe - EcoWatch ›
- Earth Is Spinning Faster Than Ever - EcoWatch ›
By Michael Svoboda, Ph.D.
Despite a journey to this moment even more treacherous than expected, Americans now have a fresh opportunity to act, decisively, on climate change.
The authors of the many new books released in just the past few months (or scheduled to be published soon) seem to have anticipated this pivotal moment.
- 10 Best Books On Climate Change, According to Activists - EcoWatch ›
- New and Recent Books About Hope in a Time of Climate Change ... ›
- Scientist Michael Mann's Must-Read Book: 'The New Climate War' - EcoWatch ›