Discover why astronomers believe the interstellar comet 3I/ATLAS could be 14 billion years old and what Harvard's Avi Loeb ...

Mars has never looked more like a planet built for hiding secrets. A cluster of eight vast, water-carved caves appears almost engineered to shield fragile chemistry, or even biology, from the brutal ...

Yes, zombie creatures from another world could indeed land on a defenseless planet, but in a twist, it's the Earthlings who ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

From signs of life on Mars to an interstellar visitor and weakening dark energy, 2025 reshaped space science, raising the ...

Harvard's Avi Loeb reveals why interstellar visitor 3I/ATLAS could be an alien 'Trojan Horse' by design rather than a natural ...

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

But 3I/ATLAS is no ordinary rock – it’s a comet from beyond the solar system which greeted the Earth on December 19. It’s ...

Pocock, a space scientist at University College London and BBC presenter, predicts alien life will be found by 2075 but ...