Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar system was the only planetary system known to humans. We had no proof other ...
A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...
Intelligent life existing on other planets may just be 'a matter of time' astrophysicists have suggested after a new find has ...
We suggest that as the Earth changed physically and chemically over time, its surface conditions allowed for a greater diversity of habitats for life. And these changes operate on geologic timescales ...
A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...
The unusual features resemble the famed buttes and mesas ... which may reveal more about the history of water on the red planet and pinpoint resources for future human exploration. Clay-rich ...