Interestingly, he added: “There seems to be no trace of them at the surface. However, through gravity data, we have a tantalising glimpse into the older history of the northern hemisphere of Mars." ...

Either way, Nerio's significant mass altered the shape of Mars with its gravity, raising tides in the magma oceans ... on other researchers to evaluate the idea and consider whether there are clever ...

The Moon, Williams and Zugger say, has an orbit around Earth that isn't as neatly aligned with the equator as you might ...

Engaging articles, breathtaking images and expert knowledge ...

Planetary rings don’t last forever, although they do exist for millions of years. The evidence for Earth’s possible ring is ...

Legendary actor Al Pacino has revealed a harrowing encounter with mortality during the early stages of the COVID-19 pandemic. The 84-year-old star, in advance of his forthcoming memoir Sonny Boy, ...

Europe’s first planetary defense mission — a follow-up to NASA’s Double Asteroid Redirection Test — will launch as early as ...

NASA plans to send crewed missions to Mars over the next decade—but the 140 million-mile (225 million-kilometer) journey to ...