A team of geochemists from the Chinese Academy of Sciences, working with colleagues from the University of Hong Kong, Tianjin University and the University of California, has found evidence that suggests much of the oxygen ...
From house plants and gardens to fields and forests, green is the color we most associate with surface life on Earth, where conditions favored the evolution of organisms that perform oxygen-producing photosynthesis using ...
Astrobiology
Apr 16, 2024
6
127
How did the molecular building blocks for life end up on Earth? One long-standing theory is that they could have been delivered by comets. Now, researchers from the University of Cambridge have shown how comets could deposit ...
Astrobiology
Nov 14, 2023
2
214
If we ever find life on other worlds, it is unlikely to be a powerful message from space. It's certainly possible that an alien civilization specifically sends us a radio message like a scene out of Contact, but the more ...
Astrobiology
May 4, 2023
0
69
If you wanted to narrow down the search for Earth-like worlds in a vast universe, how might you go about it?
Space Exploration
Dec 17, 2019
1
312
The International Space Station, like all human habitats in space, has a nagging mold problem. Astronauts on the ISS spend hours every week cleaning the inside of the station's walls to prevent mold from becoming a health ...
Space Exploration
Jun 27, 2019
5
1
Using impact craters as a dating tool, Planetary Science Institute Research Scientist Alexander Morgan has determined maximum timescales for the formation of Martian valley networks shaped by running water.
Astrobiology
Jan 15, 2024
3
466
The most recently discovered group of rocky bodies nearby Earth are termed co-orbital objects. These may have been an attractive location for extraterrestrial intelligence (ETI) to locate a probe to observe Earth throughout ...
Space Exploration
Sep 23, 2019
6
198
We're only halfway through 2023, and it feels already like the year of alien contact.
Space Exploration
Jul 20, 2023
7
38
Long before NASA's Perseverance rover touched down on the Red Planet on Feb. 18, one of its highest-level mission goals was already established: to seek out signs of ancient life on the Martian surface. In fact, the techniques ...
Space Exploration
Apr 7, 2021
2
75
