NASA Detects More Water and Ice on the Moon Than Previously Thought
A pair of studies released Monday confirmed not only the presence of water and ice on the moon, but that it is more abundant than scientists previously thought. Those twin discoveries boost the prospect of a sustainable lunar base that could harvest the moon's resources to help sustain itself, according to the BBC.
Both studies were printed in Nature Astronomy. In the first study, a NASA telescope affixed to the fuselage of a 747 airplane flying at altitudes up to 45,000 feet detected the presence of water in a large crater visible from Earth. The telescope, called the Stratospheric Observatory for Infrared Astronomy (SOFIA), zeroed in on the moon's surface with remarkable clarity to determine the molecular composition of the moon's face, according to a NASA statement.
Images from SOFIA allowed scientists to determine that a large portion of the hydrogen and oxygen combination they had previously noticed on a sunlit area of the moon are water, according to The New York Times.
"This discovery reveals that water might be distributed across the lunar surface and not limited to the cold shadowed places near the lunar poles," Paul Hertz, the director of NASA's astrophysics division, said during a news conference on Monday, as The New York Times reported.
In the second study, the NASA scientists suggest that water might be more widespread than they initially thought since it is likely trapped in many of the moon's shadowy surfaces, according to The Verge. Those cold areas of the moon possibly shelter water in an area over 15,000 square miles, according to the study.
The discovery is a boon to a potential lunar base since taking water to space is pricey, costing thousands of dollars per gallon. The discovery of water on the moon may mean that future astronauts will be able to hydrate and refuel their rockets, as The Washington Post reported. It also means they would be able to water plants, according to The Verge.
"Anytime we don't need to pack water for our trip, we have an opportunity to take other useful items with us," said Jacob Bleacher, chief exploration scientist for NASA's human exploration and operations directorate, to The New York Times.
Hannah Sargeant, a planetary scientist from the Open University in Milton Keynes, told the BBC that the location of the water will likely determine where a lunar base is established
Previous discoveries of water were found in craters in the moon's perpetually dark south. Temperatures there reach about -400 degrees Fahrenheit, making it impossible to reach the water with modern technology.
"They happen to be the coldest known places in the Solar System, believe it or not," Paul Hayne, a planetary scientist at the University of Colorado and a lead author on the second study, told The Verge.
That makes the discovery of water deposits in less treacherous areas appealing to scientists thinking about future moon exploration, according to The New York Times.
"If we find that it's abundant enough in certain locations, it would be easier to access versus going into these very cold, very dark places," said Casey Honniball, a postdoctoral fellow at NASA's Goddard Space Flight Center and lead author of the first study, to The Verge.
For the next steps, NASA will send unmanned rovers to the moon's south pole in 2023 to drill for water a meter below the surface, according to The Washington Post.
"Both papers deepen the mysteries of lunar water while providing pieces of the puzzle," wrote Bethany Ehlmann, an assistant professor of planetary science at Caltech who was not involved in the research, in an email to The Washington Post. "It's exciting to think that lurking in the shadow within ten degrees of the pole are tiny reservoirs of water ice."
- Scientists Find Rust on the Moon 'Puzzling' - EcoWatch ›
- Historic NASA/SpaceX Mission Could Pave the Way for Space ... ›
- NASA Study of Increasingly Dire Global Water Shortages Finds ›
- Groundbreaking NASA Announcement: Evidence of Liquid Water on ... ›
- NASA Spacecraft Successfully Collects Asteroid Samples ›
New fossils uncovered in Argentina may belong to one of the largest animals to have walked on Earth.
- Groundbreaking Fossil Shows Prehistoric 15-Foot Reptile Tried to ... ›
- Skull of Smallest Known Dinosaur Found in 99-Million-Year Old Amber ›
- Giant 'Toothed' Birds Flew Over Antarctica 40 Million Years Ago ... ›
- World's Second-Largest Egg Found in Antarctica Probably Hatched ... ›
EcoWatch Daily Newsletter
- Pruitt Guts the Clean Power Plan: How Weak Will the New EPA ... ›
- It's Official: Trump Administration to Repeal Clean Power Plan ... ›
- 'Deadly' Clean Power Plan Replacement ›
By Jonathan Runstadler and Kaitlin Sawatzki
Over the course of the COVID-19 pandemic, researchers have found coronavirus infections in pet cats and dogs and in multiple zoo animals, including big cats and gorillas. These infections have even happened when staff were using personal protective equipment.
- Gorillas in San Diego Test Positive for Coronavirus - EcoWatch ›
- Wildlife Rehabilitators Are Overwhelmed During the Pandemic. In ... ›
- Coronavirus Pandemic Linked to Destruction of Wildlife and World's ... ›
- Utah Mink Becomes First Wild Animal to Test Positive for Coronavirus ›
By Peter Giger
The speed and scale of the response to COVID-19 by governments, businesses and individuals seems to provide hope that we can react to the climate change crisis in a similarly decisive manner - but history tells us that humans do not react to slow-moving and distant threats.
A Game of Jenga<p>Think of it as a game of Jenga and the planet's climate system as the tower. For generations, we have been slowly removing blocks. But at some point, we will remove a pivotal block, such as the collapse of one of the major global ocean circulation systems, for example the Atlantic Meridional Overturning Circulation (AMOC), that will cause all or part of the global climate system to fall into a planetary emergency.</p><p>But worse still, it could cause runaway damage: Where the tipping points form a domino-like cascade, where breaching one triggers breaches of others, creating an unstoppable shift to a radically and swiftly changing climate.</p><p>One of the most concerning tipping points is mass methane release. Methane can be found in deep freeze storage within permafrost and at the bottom of the deepest oceans in the form of methane hydrates. But rising sea and air temperatures are beginning to thaw these stores of methane.</p><p>This would release a powerful greenhouse gas into the atmosphere, 30-times more potent than carbon dioxide as a global warming agent. This would drastically increase temperatures and rush us towards the breach of other tipping points.</p><p>This could include the acceleration of ice thaw on all three of the globe's large, land-based ice sheets – Greenland, West Antarctica and the Wilkes Basin in East Antarctica. The potential collapse of the West Antarctic ice sheet is seen as a key tipping point, as its loss could eventually <a href="https://science.sciencemag.org/content/324/5929/901" target="_blank">raise global sea levels by 3.3 meters</a> with important regional variations.</p><p>More than that, we would be on the irreversible path to full land-ice melt, causing sea levels to rise by up to 30 meters, roughly at the rate of two meters per century, or maybe faster. Just look at the raised beaches around the world, at the last high stand of global sea level, at the end of the Pleistocene period around 120,0000 years ago, to see the evidence of such a warm world, which was just 2°C warmer than the present day.</p>
Cutting Off Circulation<p>As well as devastating low-lying and coastal areas around the world, melting polar ice could set off another tipping point: a disablement to the AMOC.</p><p>This circulation system drives a northward flow of warm, salty water on the upper layers of the ocean from the tropics to the northeast Atlantic region, and a southward flow of cold water deep in the ocean.</p><p>The ocean conveyor belt has a major effect on the climate, seasonal cycles and temperature in western and northern Europe. It means the region is warmer than other areas of similar latitude.</p><p>But melting ice from the Greenland ice sheet could threaten the AMOC system. It would dilute the salty sea water in the north Atlantic, making the water lighter and less able or unable to sink. This would slow the engine that drives this ocean circulation.</p><p><a href="https://www.carbonbrief.org/atlantic-conveyor-belt-has-slowed-15-per-cent-since-mid-twentieth-century" target="_blank">Recent research</a> suggests the AMOC has already weakened by around 15% since the middle of the 20th century. If this continues, it could have a major impact on the climate of the northern hemisphere, but particularly Europe. It may even lead to the <a href="https://ore.exeter.ac.uk/repository/handle/10871/39731?show=full" target="_blank" rel="noopener noreferrer">cessation of arable farming</a> in the UK, for instance.</p><p>It may also reduce rainfall over the Amazon basin, impact the monsoon systems in Asia and, by bringing warm waters into the Southern Ocean, further destabilize ice in Antarctica and accelerate global sea level rise.</p>
The Atlantic Meridional Overturning Circulation has a major effect on the climate. Praetorius (2018)
Is it Time to Declare a Climate Emergency?<p>At what stage, and at what rise in global temperatures, will these tipping points be reached? No one is entirely sure. It may take centuries, millennia or it could be imminent.</p><p>But as COVID-19 taught us, we need to prepare for the expected. We were aware of the risk of a pandemic. We also knew that we were not sufficiently prepared. But we didn't act in a meaningful manner. Thankfully, we have been able to fast-track the production of vaccines to combat COVID-19. But there is no vaccine for climate change once we have passed these tipping points.</p><p><a href="https://www.weforum.org/reports/the-global-risks-report-2021" target="_blank">We need to act now on our climate</a>. Act like these tipping points are imminent. And stop thinking of climate change as a slow-moving, long-term threat that enables us to kick the problem down the road and let future generations deal with it. We must take immediate action to reduce global warming and fulfill our commitments to the <a href="https://www.ipcc.ch/sr15/" target="_blank" rel="noopener noreferrer">Paris Agreement</a>, and build resilience with these tipping points in mind.</p><p>We need to plan now to mitigate greenhouse gas emissions, but we also need to plan for the impacts, such as the ability to feed everyone on the planet, develop plans to manage flood risk, as well as manage the social and geopolitical impacts of human migrations that will be a consequence of fight or flight decisions.</p><p>Breaching these tipping points would be cataclysmic and potentially far more devastating than COVID-19. Some may not enjoy hearing these messages, or consider them to be in the realm of science fiction. But if it injects a sense of urgency to make us respond to climate change like we have done to the pandemic, then we must talk more about what has happened before and will happen again.</p><p>Otherwise we will continue playing Jenga with our planet. And ultimately, there will only be one loser – us.</p>
By John R. Platt
The period of the 45th presidency will go down as dark days for the United States — not just for the violent insurgency and impeachment that capped off Donald Trump's four years in office, but for every regressive action that came before.
- Biden Announces $2 Trillion Climate and Green Recovery Plan ... ›
- How Biden and Kerry Can Rebuild America's Climate Leadership ... ›
- Biden's EPA Pick Michael Regan Urged to Address Environmental ... ›
- How Joe Biden's Climate Plan Compares to the Green New Deal ... ›