Evolution
Without Nickel, Life on Earth Could Finally Breathe
[/caption] Researchers have long puzzled over why oxygen flourished in Earth's atmosphere starting around 2.4 billion years. Called the "Great Oxidation…
16 years ago
Arizona Scientist: We Could All Be Martians
[/caption] As long as we’re still pondering human origins, we may as well entertain the idea that our ancestor microbes…
16 years ago
US Signs International Deal to Collaborate on Lunar Missions
[/caption] NASA has signed a landmark agreement to collaborate with emerging space-faring nations for the exploration of the Moon. This…
16 years ago
An Experiment to Test Panspermia
One of most intriguing, and controversial, theories astrobiology is the concept of Panspermia. This idea proposes that life on Earth…
17 years ago
Astrophoto: Swan Song for a Comet
On December 2, 1995, the SOHO (Solar and Heliospheric Observatory) spacecraft was launched aboard an Atlas/Centaur rocket from Cape Canaveral…
18 years ago