A massive extraterrestrial craft slamming into the Pacific and triggering a United States Navy response sounds like a ...

ESA's advanced XMM-Newton telescope discovered a faint X-ray glow from the 3I/ATLAS comet. What is this mysterious light it emits?

As the winter solstice approaches, Earth is preparing for a brush with a high-speed traveller from the furthest reaches of the cosmos. On Friday, 19 December, a gargantuan space object that has ...