On May 2, as sunlight crept over the Martian horizon, the Odyssey spacecraft captured Arsia Mons, a towering, long-extinct volcano, puncturing a glowing band of greenish haze in the planet’s upper ...

A new image from NASA’s Mars Odyssey orbiter reveals an extraordinary sight: a massive formation breaking through Mars’ early ...

Arsia Mons, which dwarfs Earth's tallest volcanoes, and its two neighboring volcanoes are often surrounded by water ice ...

Mars Odyssey orbiter has captured a new panorama of Arsia Mons, one of the largest volcanoes on Mars, peeking through morning ...

A spectacular new image from NASA’s longest-running Mars orbiter has captured a breathtaking view of a giant Martian volcano ...

Mysterious dark streaks first observed on Mars in the 1970s are not what many believed they were. Scientists now say the ...

NASA’s MAVEN spacecraft has observed atmospheric sputtering on Mars for the first time, confirming how solar wind stripped the Red Planet’s thick atmosphere and transformed its climate.

Sen. Ted Cruz's newly unveiled legislative directives for Senate Republicans’ budget reconciliation bill would dedicate ...

Nature explores the massive costs and challenges of sending astronauts to the red planet. US President Donald Trump last week ...

A crewed mission to Mars would rank among the most complex and costly undertakings in human history -- and US President ...

If you've spent any time perusing the carousel of raw images from NASA's Perseverance Mars rover, you might have stumbled ...

US President Donald Trump last week laid out one of the biggest challenges ever for NASA — to land the first humans on Mars.