Smoking cannabis and consuming THC edibles are both linked to impaired blood vessel dilation, possibly through separate mechanisms, a study finds.

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.

New calculations have revealed that the super-energetic jets produced by spinning black holes could be a source for elusive dark matter particles.

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.

The latest Mount Etna eruption triggered an avalanche of volcanic material and sent ash miles into the air. Spectacular photos and videos capture the eruption of Europe's largest active volcano.

Around 1,000 years ago, this Viking Age arm-ring from the Isle of Man was likely used not only to display its owner's wealth but also to serve as currency in financial transactions.