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NASA Mars Profile picture
NASA Mars
@NASAMars
NASA’s official X account for all things Mars. Join us as we explore the Red Planet!
Sep 10 • 4 tweets • 2 min read
After a year of scientific scrutiny, a rock sample collected by the Perseverance rover has been confirmed to contain a potential biosignature. The sample is the best candidate so far to provide evidence of ancient microbial life on Mars. go.nasa.gov/4n35lVMA self-portrait photo of the Perseverance rover on the surface of Mars, taken with a camera on its robotic arm. The six-wheel rover sits in a rocky desert landscape. Its robotic "head" is pointed down to one rock where there is a small hole drilled, along with a small pile of light-colored tailings from the drill.
A close-up photo of layered rocks. Between two layers, in reddish mudstone, are small, dark spots, slightly lighter at the middle of each spot. The Perseverance team discovered the rock formation in an ancient, now-dry riverbed in Jezero Crater, and instruments revealed that it's composed of clay and silt. On Earth, these are excellent preservers of past microbial life.
Aug 5 • 14 tweets • 5 min read
Thirteen ways of looking at a red planet: 13 years ago today, Curiosity landed on Mars. Here are 13 remarkable views captured during one of the most extraordinary journeys of all time. Ride along at 🧵 science.nasa.gov/mission/msl-cu…A collage of 13 photos from Mars of, or taken by, the Curiosity rover, including a selfie of the robot, a sunset, the rover's wheels, Martian landscapes, and more. Talk about a trick shot. With a lot of planning and math, NASA's Mars Reconnaissance Orbiter team managed to catch Curiosity in the act of descending to the Martian surface on Aug. 5, 2012 (Aug. 6 UTC). 1/13 A black-and-white view of a pill-shaped capsule descending under a parachute toward and rocky landscape, seen from above. An inset view offers a closer look, including the pattern of reflected sunlight on the open parachute.
Feb 18, 2021 • 4 tweets • 3 min read
A long time ago, Mars was a world flowing with rivers and streams. We know this thanks to decades of work by robotic explorers and their teams on Earth.

What we don't know: did life ever thrive on Mars?

Now, the @NASAPersevere mission will take an even closer look. 1/4 The rover will set out on expedition across Jezero Crater, where a river once ran into a lake similar in some ways to lakes on Earth: go.nasa.gov/3s59WcX. There's even a river delta that looks remarkably like the one at the mouth of the Mississippi. 2/4