Mars

  • The word "red" is written in white on a red background.

    Why is Mars red? The mystery may finally be solved

    A new study shows how a water-rich mineral could explain Mars' color, hinting at a wetter, more habitable past on the Red Planet.

  • A shot of Mars from space.

    New evidence challenges ideas about Mars’ past

    New evidence exists for hidden water reservoirs and rare magmas on ancient Mars, researchers report.

  • The meteorite, a small dark rock, sits on a small, clear plastic stand.

    Meteorite holds evidence of water on ancient Mars

    New research shows that the Lafayette Meteorite was exposed to liquid water while located on Mars

  • A red marble sits on a white surface with light shining through it.

    Does life exist in pools below Mars’ surface?

    Life could exist on Mars in shallow meltwater pools below the red planet's icy surface, new research suggests.

  • A picture of the Mars Curiosity Rover on the red planet.

    Mars rover finds element that’s essential to life

    The Curiosity rover has discovered pure sulfur on the red planet. A chemist explains the importance of the element.

  • An astronaut works in space near the ISS wearing a NASA spacesuit with the Earth visible in the background.

    Meds on Mars missions could expire before astronauts get back

    Expired medications could pose a challenge as space agencies plan for long-duration missions to Mars and beyond.

  • An orange basketball splashes into some water, which sprays in all directions.

    Meteorites the size of basketballs hit Mars almost every day

    "This is the first paper of its kind to determine how often meteorites impact the surface of Mars from seismological data..."

  • An aerial shot of a the volcano Olympus Mons on Mars with frost on the top shaded in blue.

    There’s water frost on top of volcanoes on Mars

    For the first time, researchers have found frost on Mars' Tharsis volcanoes, challenging previous assumptions about the planet's climate.

  • A "self-portrait" of the Curiosity rover on Mars shows the rover and the vast, barren landscape of the planet behind it.

    Natural mechanism may explain gassy mystery on Mars

    Barometric pumping could be responsible for bringing gases from beneath the planet's surface into its atmosphere, researchers report.

  • A scoop of red dust in a white shovel.

    Solvents may pave way for building on Mars and the moon

    Researchers have taken steps toward finding solvents that could be used to extract building materials from rock dust on the moon and Mars.

  • A reddish, flat Martian landscape fades into the horizon.

    Lava flows on Mars reveal a turbulent history

    When researchers reconstructed lava flows on Mars, they realized the red planet is a lot more active than they previously thought.

  • A shot of the rover on the Martian surface with rocky soil and large rocks in the background.

    Cracks in Martian mud could be sign of conditions right for life

    "This is the first tangible evidence we've seen that the ancient climate of Mars had such regular, Earth-like wet-dry cycles."