NASA

A war of words between SpaceX CEO Elon Musk and President Donald Trump could lead to significant fallout for U.S.-led space exploration.

For reasons still unknown, Earth's energy imbalance is rising much faster than models can account for. Now, scientists are calling for long-term investment in monitoring capability, so that they can make informed predictions about climate change.

After nearly a decade in orbit, NASA's MAVEN spacecraft has, for the first time, directly observed the process that scientists had long suspected was responsible for stripping Mars of its atmosphere.

The Trump administration's 2026 budget request cuts NASA funding by $6 billion, which would lead to the cancellation of Mars sample-return and other high-profile missions.

Scientists have found a way to monitor volcanic carbon dioxide levels — one of the first signs a volcano might be about to blow — that doesn't involve trekking up a mountain.

A NASA-funded plan to build a large radio telescope on the moon's far side is nearing final approval and could become a reality by the 2030s, researchers say. The ambitious project will help safeguard astronomy from satellite "megaconstellations" — and help scientists unravel more of the radio spectrum.

During a House Committee on Space, Science and Technology hearing, experts discussed the state of NASA's planetary defense capabilities.

The discovery of water ice around a distant star is allowing scientists to study how the key ingredient for life is delivered to young planets beyond our solar system.

DNA analysis has revealed that 26 novel species of "extremophile" bacteria were lurking in a clean room that housed NASA's Phoenix lander before it was launched to Mars in 2007. The hardy microbes might be capable of surviving in space.