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What's Happening in the Night Sky in 2020?
By Dirk Lorenzen
2020 will be the year of Mars. The red planet will approach Earth in early October to within 62 million kilometers. Four space agencies are set to take advantage of this close encounter and send spacecraft to Mars. The European Space Agency (ESA) will launch its ExoMars rover on a Russian Proton rocket from the Baikonur cosmodrome. ExoMars is set to land on the surface, dig into the soil and look for traces of past life. They will be looking for possible living microbes about half a meter below the Martian surface. Above it, harmful cosmic radiation makes life as we know it impossible.
Next in line is NASA, which is preparing Mars 2020, a rover that will land on the surface as well. It is supposed to look for organic molecules, chemical stuff that contains carbon. It will also try to get the oxygen out of the carbon dioxide in the Martian atmosphere. This could be critical proof for future manned missions.
Most exciting: Mars 2020 is slated to collect and store samples from the Martian soil for a mission - yet to be planned in detail - that will bring them back to Earth about ten years from now.
Two New Players in the Mars Game: China and UAE
After its successful lunar missions, China is aiming for Mars too. It looks to begin a mission consisting of an orbiter that will fly around Mars for years and a lander with a rover. If their missions succeed, China and Europe will join Russia and the U.S. in landing a spacecraft safely on Mars.
The United Arab Emirates are also planing their first interplanetary mission. The Hope spacecraft will launch with a Japanese rocket and is supposed to orbit the red planet. UAE is looking to gain experience in deep space, and as the name suggests, the team hopes to successfully navigate the spacecraft into Mars' orbit.
China's Next Step in Lunar Exploration
China will most likely launch its Chang'e 5 mission some time in 2020. Early last year, Chang'e 4 landed on the far side of the moon, a feat no other space nation has achieved so far. Chang'e 5 will land on the moon's near side, analyze surface material and bring samples back to Earth. If China manages to do that, for the first time since the mid-70s, samples from the Moon will make it into labs on Earth. Back then, three Soviet Luna missions collected lunar dust.
German Technology on Its Way to the Moon
If everything goes extremely smoothly, the Orion spaceship will launch its maiden voyage in late 2020. Orion, built on the basis of a unique cooperation between NASA and ESA by U.S. and European companies, will spend about four weeks in space. The goal of this Artemis-1 mission, the first within the new lunar exploration framework of the U.S., is to be in lunar orbit for some days and check out all systems.
However, on this first trip, no humans will be on board. But two dummies from the German Aerospace Center DLR equipped with thousands of sensors are going to collect information about the flight conditions. The Orion spaceship consists of two parts: The crew capsule is provided by NASA. The service module with engines, navigation and attitude control systems, fuel, water and air are supplied by Airbus in Bremen, Germany.
Four Lunar Eclipses, Four Disappointments
The Moon is an exciting body in terms of space flight activities. It is a great sight in the sky as well. However, the lunar eclipses of 2020 won't be much for the naked eye. Four times the Moon will cross the Earth's penumbra. During a penumbral eclipse, however, the Moon is still a full circle. But some areas are slightly dimmer than others and appear in a more brown or gray color.
On Jan. 10, the Moon's southern hemisphere will be in the penumbra, visible from 18:00 to 20:00 UTC. On June 5, the same will happen from 18:30 until 20:30 UTC. On July 5, observers will note from 03:00 until 04:00 UTC that the northern hemisphere of the Moon is in Earth's penumbral shadow as well as on Nov. 30 from 09:00 until 10:30 UTC. These eclipses are visible everywhere on Earth where the Moon is above the horizon.
Two Solar Eclipses
2020 is a much better year in terms of solar eclipses. On June 21, less than a day after the summer solstice in the northern hemisphere, there is an annular solar eclipse. The Moon will be in front of the Sun, but it won't be big enough to block the sunlight entirely. It will be akin to a 1-Euro-coin sitting on top of a 2-Euro-coin.
Observers in a long but very narrow zone will experience the annular eclipse: This zone extends for more than 14.000 kilometers, but it is only about 20 kilometers wide. It passes through Congo, South Sudan, Ethiopia, Eritrea, Yemen, Saudi-Arabia, Oman, Pakistan, Northern India, Southern China, Taiwan all the way into the Pacific Ocean to an area south of Guam.
Globally, the eclipse starts at 03:46 and ends at 09:34 UTC. On a given location, the eclipse lasts at best slightly more than two hours. Observers in most parts of Africa and Asia as well as in the northernmost regions of Australia will experience a partial eclipse.
Black Sun Over Chile and Argentina
The 2020 highlight in the sky will be the total solar eclipse on Dec. 14. Again, in a very long zone that is about 90 kilometers wide, the New Moon will block the Sun completely. For at best 2 minutes and 10 seconds, the day will turn into night.
During totality the brightest stars in the sky light up and the black lunar disk is surrounded by the bright and beautiful corona, the Sun's atmosphere. Unfortunately the zone of totality runs almost exclusively over the Pacific and Atlantic Ocean.
Totality starts at 14:33 UTC in the South Pacific and it ends at 17:54 UTC off the Namibian coast. But eclipse chasers can count their lucky stars, because the greatest eclipse occurs over land. Between 16:00 and 16:25 UTC, the Moon's shadow will cross the southern parts of Chile and Argentina. The partial phase of this eclipse is visible in most areas of the southern Pacific, South America, Antarctica, Namibia and South Africa.
Attention! Looking into the Sun without special eclipse filters (regular sun glasses are no protection!) is extremely dangerous. In the worst case, the observer can lose his or her eye sight.
Solar Orbiter: ESA's Spacecraft for the Sun
On Feb. 5 the Solar Orbiter is scheduled to lift off from Cape Caneveral. This joint ESA/NASA mission is set to study the energetic particles constantly emitted by the Sun, to take pictures in X-ray, ultraviolet and visible light. It is set to study the Sun's surface and atmosphere.
It will provide a unique viewing angle as its orbital inclination will increase to about 33 degrees against the Sun's equator over the 10-year span of the mission. The Solar Orbiter will be in a unique position to observe the poles of the Sun, which are out of reach for telescopes on Earth. The spacecraft will get as close to the Sun as 42 million kilometers, well within the orbit of Mercury.
The Year of the Three Planets
Mars, the favorite object for space flight engineers in 2020, will be visible in the sky throughout the year. Until June, Mars shows up in the morning sky. By July it will rise before midnight and from September until December the bright reddish spot in the constellation Pisces is visible all night long. Jupiter, the biggest planet in the solar system, will be visible brilliantly from May until the end of the year.
On July 14, it is in its best position. Jupiter is in the constellation Sagittarius as well as the ring planet Saturn which is brightest on July 20. Jupiter and Saturn are the gems of the long winter nights in the southern hemisphere.
On Dec. 21, Jupiter gets very close to Saturn as the bigger and faster planet passes the slower ring planet. Such encounters of Saturn and Jupiter happen only once in 20 years!
Venus, our inner neighbor in the solar system, is a bright evening star until mid May. Then it will disappear and reemerge in mid June in the morning sky.
New U.S. Space Ships for the Station?
2020 could see a shift in paradigm for U.S. space flight activities. SpaceX and Boeing want to bring humans to the International Space Station and back to Earth. So far, both companies only deliver cargo. However, there have been significant delays in developing the Crew Dragon and the Starliner spaceships. If all goes well, the first manned flights of these capsules could occur in the second quarter of this year. For the first time since the shuttle fleet was retired in 2011, NASA astronauts would launch from US territory into space.
Ariane-6, Europe's New Rocket
Forty years ago, on Christmas Eve 1979, Europe's rocket Ariane took off for the very first time. Ariane has logged more than 250 flights since then. The current Ariane-5 is set to be phased out over the next years.
Late this year, Ariane-6 is scheduled to go on its maiden voyage into Earth's orbit. The new version of Europe's work horse for space activities is much cheaper, versatile and flexible, yet it's equally powerful in terms of payload capacity as its predecessor.
ESA and the European industry are facing strong competition from new commercial players like SpaceX in the U.S. and were forced to come up with a newly developed rocket.
2020: 30 Years of Hubble and Lots of Shooting Stars
On April 24, the Hubble Space Telescope will be in orbit for 30 years. A car on Earth as old as Hubble is considered antique. But the space telescope is still in perfect shape, doing first class science and sending mesmerizing pictures of planets, nebulae, star clusters and galaxies to Earth, reaching out to billions of people.
Stargazers are looking forward to this year's meteor showers. Last year, all three major showers were spoiled by the light of a full Moon. This year is different. While the Perseids in August will be slightly affected by the Moon, the Leonids in November and the Geminids in December will light up in a perfect dark sky. But remember: There can be a bright meteor in the sky at any time. Just look up - and be patient.
Reposted with permission from DW.
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By Kristen Fischer
It's going to be back-to-school time soon, but will children go into the classrooms?
The American Academy of Pediatrics (AAP) thinks so, but only as long as safety measures are in place.
Keeping Schools Safe<p>What will safer schools look like?</p><p>In a <a href="https://jamanetwork.com/journals/jama/fullarticle/2766822" target="_blank">JAMA article</a> published last month, <a href="https://www.jhsph.edu/faculty/directory/profile/1781/joshua-m-sharfstein" target="_blank">Dr. Joshua Sharfstein</a>, a pediatrician and professor at the Johns Hopkins Bloomberg School of Public Health, outlined suggestions — many of which are similar to AAP's.</p><p>Remote learning protocols must stay in place, especially as some schools stagger home and in-building learning. If another shutdown needs to occur, children will rely on distance learning completely, so it must be easy to switch to, he said.</p><p>He suggested giving parents a daily checklist to document their child's health. Kids should be screened quickly on arrival and be given hygiene supplies. Maintenance staff should use appropriate PPE and have regular cleaning schedules. A notification system should be in place if a case is identified, Sharfstein recommended.</p><p><a href="https://www.albany.edu/rockefeller/faculty/erika-martin" target="_blank">Erika Martin</a>, PhD, an associate professor of public administration and policy at University at Albany, said nutrition assistance and health services should be included. She called for tutoring programs with virtual options as well as technology access.</p>
Supporting Staff<p>Teachers and staff will be affected by safeguarding measures, noted <a href="https://directory.sph.umn.edu/bio/sph-a-z/rachel-widome" target="_blank">Rachel Widome</a>, PhD, an associate professor of epidemiology and community health at University of Minnesota.</p><p>"In order for all of the in-school precautions to work well, we'll be asking a lot of teachers and staff," Widome told Healthline. In addition to their usual workload, they'll now be asked to monitor mask-wearing, ensure children are keeping distance, and be aware of any symptoms.</p><p>Along with Sharfstein, Widome called for an increase in financial support. More employees will likely be required so teachers and staff members can keep up with the added demands.</p>
Should Kids Go Back?<p>While these guidelines may help get some schools to reopen, many people don't think children should go back to school over fears they could contract the disease and spread it to other vulnerable family members like grandparents, infant siblings, or their parents.</p><p>In a <a href="https://pediatrics.aappublications.org/content/early/2020/07/08/peds.2020-004879" target="_blank">Pediatrics</a> commentary, <a href="https://www.md.com/doctor/william-raszka-md" target="_blank">Dr. William V. Raszka, Jr.</a>, an infectious disease specialist at The University of Vermont Medical Center, argued that schools should open because school-aged children are far less important drivers of COVID-19 than adults.</p><p>But he says the risk and benefit is not equal among all students ages 5 to 18.</p><p>"Elementary schools are arguably higher priority for face-to-face schooling, since younger children are at lower risk for infection and transmission, and since parental supervision of younger children's distance learning may be particularly challenging," added Sorensen, who penned a <a href="https://jamanetwork.com/channels/health-forum/fullarticle/2767411" target="_blank">June article in JAMA</a> with reopening tips. "That means middle and high schools are more likely to emphasize distance learning."</p><p>Specific student populations, such as special education students and students with disabilities, would also benefit greatly from more time spent in face-to-face environments, Sorensen said.</p>
What Parents Can Do<p>Parents should ask for and receive frequent updates from schools about plans for the fall. They should also be informed about plans if and when COVID infections are identified, Sharfstein said.</p><p>"I'd like to see parents investing now, during the summer, in doing things that can slow and stop the spread of the virus in their communities," Widome said.</p><p>"Now is a good time for kids to practice wearing masks and get used to them as they may be wearing them for longer stretches if school starts up in person," Widome suggested.</p><p>She recommends parents try different mask designs and materials to see what children are more comfortable wearing.</p><p>"If you are using cloth face coverings, it's good to have extras on hand," Widome added.</p><p>Parents should model healthy behavior at home and while out in public — another thing that could affect how well children adapt to reopening practices, Sorensen said.</p><p>"Children may want to know more about face coverings," added <a href="https://www.linkedin.com/in/leescott/" target="_blank">Lee Scott</a>, chairwoman of the Educational Advisory Board at <a href="https://www.goddardschool.com/" target="_blank">The Goddard School</a>. "Dramatic play, such as creating or wearing a face covering, may help some children adjust to this concept." Schools can also show children photos of what faculty members look like in their masks so the students are familiar with that appearance.</p><p>Johns Hopkins University recently released its eSchool+ Initiative, a slew of resources surrounding education during the pandemic. These include a <a href="https://equityschoolplus.jhu.edu/reopening-checklist/" target="_blank">checklist for administrators</a>, report on <a href="https://equityschoolplus.jhu.edu/ethics-of-reopening/" target="_blank">ethical considerations</a>, and a tracker of <a href="https://equityschoolplus.jhu.edu/reopening-policy-tracker/" target="_blank">state and local reopening plans</a>.</p>
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