In late November 2025, astronomers captured an unprecedented cosmic signature: the first X-ray emissions ever detected from ...

You're going to see a lot of stories in 2026 claiming soon-to-be-achieved science and tech advances. Here are the ones just ...

Astronomers studying the interstellar object known as 3I/ATLAS say new observations from the Gemini North Telescope in Hawaii ...

New images from NASA 's Hubble Space Telescope have revealed an enormous, oddly shaped disk of gas and dust around a single ...

The Hubble Space Telescope captured the best picture yet of a comet visiting our solar system from another system. The photos were released on Thursday by NASA and the European Space Agency. The comet ...

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...

Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

As the year draws to a close, we take a look at some of the biggest science stories of the year, and why they matter.

Some scientific breakthroughs may be lost to time due to scandal and redaction, while others are simply a case of waiting for ...

A rare interstellar comet will make its closest approach to Earth this week, offering scientists an unprecedented opportunity to study material from outside our solar system. For astronomers, ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

I/ATLAS shows baffling energy and composition that defy cometary physics, sparking scientific scrutiny and debate over its ...