Logic would indicate that if significant numbers are reporting seeing strange objects in the sky then there may be a basis in fact,” a 1997 Defense Intelligence Staff memo said.

While there’s no concrete consensus on a list of prerequisites for life to evolve on other planets, there are at least a ...

Elon Musk is no longer talking only about Mars. He has started sketching a path for humanity that stretches all the way to ...

On January 14, 2005, the Huygens probe landed on Saturn’s largest moon, Titan. Huygens remains the first and only landing in ...