Learn why scientists are cautiously optimistic about the potential biosignatures found in the Sapphire Canyon rock sample.

NASA’s 10 new astronaut candidates are already making history. The 2025 class includes the first person to join the astronaut corps who has previously flown to orbit. It’s also the first class in history to include more women than men. To top things off, one of them could be the first to set foot on the Red Planet.

NASA on Monday introduced the 10 people who will join the agency’s astronaut corps as it races to return humans to the moon.

NASA unveiled 10 recruits who will undergo training to become eligible for future missions that could carry humans deeper into the cosmos than ever.

NASA has discovered signs of life on Mars in the form of organic carbon, sulfur, rust, and phosphorous in a canyon, and new research from the University of Texas at Austin suggests that an atmosphere may have formed billions of years ago,

NASA’s Opportunity rover has officially concluded its groundbreaking mission on Mars, sending its final signals to Earth and leaving behind a legacy that reshaped our understanding of the Red Planet.

But the claim that NASA announced found life on Mars was false. NASA announced it found promising evidence of potential ancient life on the planet, but more research was needed before scientists could comfortably declare it was definitive evidence of life.

NASA scientists say a rock sample collected by the Perseverance rover in Jezero Crater may contain the strongest signs yet of ancient microbial life on Mars, though more analysis is needed before drawing firm conclusions.

Curiosity is exploring Mars’ boxwork terrain, where ridges and hollows may have formed from cementation and erosion. The rover has been documenting rock textures and chemistry, comparing smoother ridge rocks with nodular hollow-edge rocks.