Water is essential for life on Earth and other planets, and scientists have found ample evidence of water in Mars' early history. But Mars has no liquid water on its surface today. New research from Washington University ...
Planetary Sciences
Sep 20, 2021
19
1990
Conventional wisdom tells us that large objects appear smaller as they get farther from us, but this fundamental law of classical physics is reversed when we observe the distant universe.
Astronomy
Oct 25, 2019
80
865
As recently as 5,000 years ago, the Sahara—today a vast desert in northern Africa, spanning more than 3.5 million square miles—was a verdant landscape, with sprawling vegetation and numerous lakes. Ancient cave paintings ...
Earth Sciences
Apr 5, 2013
171
0
A new study of historical carbon dioxide levels stresses urgent action is needed to avoid prehistoric levels of climate change.
Earth Sciences
Jun 1, 2021
11
205
A Curtin University researcher has solved a nearly 100-year-old riddle by discovering that glass found in the Egyptian desert was created by a meteorite impact, rather than atmospheric airburst, in findings that have implications ...
Earth Sciences
May 15, 2019
0
219
(Phys.org)—A working group of planetary scientists is set to formally address the 35th International Geological Congress this month on the issue of whether to declare that the Earth has entered a new geological epoch—the ...
The eastern half of the U.S is one of the principal hot spots for severe thunderstorm activity, especially tornadoes, globally. The standard explanation for this outcome is the combination high terrain to the west and the ...
Environment
Aug 23, 2021
0
148
News flash: The Milky Way galaxy just got a little weirder. Back in 2011 astronomers were amazed when NASA's Kepler spacecraft discovered a planet orbiting a double star system. Such a world, they realized, would have double ...
Astronomy
Sep 13, 2012
35
0
(PhysOrg.com) -- So accustomed are we to the sunshine, rain, fog and snow of our home planet that we find it next to impossible to imagine a different atmosphere and other forms of precipitation.
Astronomy
Sep 29, 2009
12
0
Researchers said Wednesday they had observed water vapour escaping high up in the thin atmosphere of Mars, offering tantalising new clues as to whether the Red Planet could have once hosted life.
Planetary Sciences
Feb 10, 2021
1
2780
