Chinese Mars Lander - Zhurong Will Attempt to Land on the Red Planet May 17
Some viruses have mysterious and unique genetic alphabet not found anywhere else on the planet
In the search for life, oxygen in a planet’s atmosphere is one potential sign of biological activity that might be detected by future telescopes. A new study, however, describes several scenarios in which a lifeless rocky planet around a sun-like star could evolve to have oxygen in its atmosphere.
