Data from oceans, ice and the air all point to the same thing: rising invisible heat. What experiments are working, and what kinds of trials do we need to stop?

Indian astronaut Group Captain Shubhanshu Shukla is visiting a home away from Earth that has seen continuous human presence for a quarter of a century and is floating around 400 kilometres above Earth ...

Aliens have been one of the most enduring elements of science fiction. Sometimes they’re terrifying, sometimes they’re wise, ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

An analysis argues that deporting Elon Musk would severely cripple US space exploration and hand dominance to China, ...

An astronaut aboard the International Space Station has shared a striking photo of what is known as a Transient Luminous ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.