Scientists may have figured out how Mars hung onto its surface liquid water in its ancient history via alternating periods of ...

The Wolf Moon will reach its peak fullness at 5:27 p.m. Eastern Time on January 13. It will rise in the sky about an hour earlier, at 4:28 p.m. ET, and remain visible until 8:09 a.m. ET the next ...

13 x 9.75 in. (33 x 24.8 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...

Ancient ripples suggest a warmer, wetter past for the Red Planet that supported open water on its surface.

Mars haunts us as a vision of a planet gone wrong. It was once warm and wet, with rivers flowing across its surface and ...