An exploding budget and an unraveling schedule spell disappointment for NASA's mission to learn more about Mars's history.

NASA’s Curiosity rover is skygazing and photographing lovely examples of noctilucent clouds on Mars. The wispy formations ...

Researchers at NASA Langley are developing a next-gen system called MARVL (Modular Assembled Radiators for Nuclear Electric ...

NASA wants to return Mars samples to Earth, but budget problems and technical woes have the mission caught between a rock and ...

NASA is working on a nuclear electric propulsion system that would involve robotically assembling a space radiator the size ...

NASA has plans to return humans to the moon with the Artemis mission—but Elon Musk’s preference for Mars could have influence ...

NASA is pitching a cheaper and quicker way of getting rocks and soil back from Mars, after seeing its original plan swell to ...

We're hurtling toward a new era of mega-rockets with enough power to send colonists to the red planet, but should we?

Elon Musk has taken aim at NASA for focusing on exploring the Moon rather than launching missions to Mars. The Red Planet has ...

NASA announced Tuesday that it's exploring two landing options to move forward with its mission to retrieve environmental samples from Mars at a lower cost. The goal of the Mars Sample Return Program, ...

After an independent review concluded NASA's plans to robotically collect and return rock and soil samples from Mars could cost up to $11 billion, NASA "pulled the plug" and is focusing on two ...

This photomontage shows tubes containing samples from Mars, as collected by NASA’s Perseverance Mars rover. The agency’s Mars Sample Return Program plans to bring these samples back to study ...