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

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

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

Artificial intelligence is making a huge splash now, but NASA saw its potential long ago. Here are four ways AI is helping ...

The signs of wave ripples in the sandy shores of ancient lake beds, created as wind pushed water back and forth have been found on Mars providing evidence that there were open bodies of water, not ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Mars, Venus, Jupiter, and Saturn can be spotted without special equipment, with Uranus and Neptune requiring a telescope.