Astronauts often react with awe when they see the curvature of Earth below the International Space Station. Now Mars scientists are getting a taste of what that's like, thanks to NASA's 2001 Mars Odyssey orbiter, which completed ...
Planetary Sciences
Nov 28, 2023
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67
Concerted efforts and commitments are needed to solve the complex trade-offs involved in reducing the impact of aviation on the climate, according to new research.
Environment
Nov 28, 2023
20
1
Unrelenting wildfires in Canada and Hawaii. Catastrophic floods in Libya. Sweltering temperatures across the globe. These climate disasters, which once would have happened every decade or longer, all took place in 2023. As ...
Environment
Nov 28, 2023
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3
When spacecraft return to Earth, they don't need to shed all their velocity by firing retro-rockets. Instead, they use the atmosphere as a brake to slow down for a soft landing. Every planet in the solar system except Mercury ...
Space Exploration
Nov 28, 2023
0
17
An international team of marine biogeochemist and atmospheric scientists have made a rare discovery in the almost uncharted atmosphere of the South Pacific Ocean. They found that nocturnal nanoparticle bursts that contain ...
Earth Sciences
Nov 28, 2023
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5
Despite their tiny sizes, aerosols, such as sea salt, dust, and ash, play a giant role in shaping weather and climate. These particles scatter light, act as the starting point for cloud formation, and can even initiate or ...
Earth Sciences
Nov 27, 2023
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6
Scientists have simulated conditions that allow hazy skies to form in water-rich exoplanets, a crucial step in determining how haziness muddles observations by ground and space telescopes.
Astronomy
Nov 27, 2023
0
67
Methane is the second-most abundant greenhouse gas in Earth's atmosphere, and its emissions have been rapidly—and mysteriously—rising since 2007. Though pervasive, the origin of the colorless compound is tricky to trace, ...
Earth Sciences
Nov 27, 2023
0
24
For the first time in history, two planets have been home to testing future aircraft designs. In this world, a new rotor that could be used with next-generation Mars helicopters was recently tested at NASA's Jet Propulsion ...
Space Exploration
Nov 22, 2023
6
106
The James Webb Space Telescope observed the exoplanet WASP-80 b as it passed in front of and behind its host star, revealing spectra indicative of an atmosphere containing methane gas and water vapor. While water vapor has ...
Planetary Sciences
Nov 22, 2023
1
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