Orbital dynamics show that President Trump’s pledge to land astronauts on Mars couldn’t happen until 2029 at the earliest.

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

Known as the "Parade of Planets," the celestial event will feature appearances from Mars, Jupiter, Uranus, Venus, Neptune and ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

The Artemis program has been NASA's best chance to get "boots on the moon" again. But with the new US administration taking ...

Planetary Parade A rare alignment of Venus, Saturn, Jupiter, Mars, Uranus, and Neptune is visible this month and into early ...

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

Caltech scientists published a study using NASA Curiosity rover imagery showing the past existence of warm water on Mars.

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

The night sky will feature a parade of its own in the coming weeks, with several planets visible for sky watchers to enjoy.