Humans may, one day, be able to inhabit other planets. Some advocates argue that remaining on only one courts disaster.

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Among her most ominous forecasts was a warning that World War III would erupt in 2026 — a prediction made more unsettling by ...

The comet originated from outside our solar system and poses no danger to our planet. NASA officials have rejected theories that the object could be an alien spaceship. While not visible to the naked ...

A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming interstellar object 3I/ATLAS could be an alien probe. But NASA and most astronomers ...

The mystifying invader 3I/ATLAS, a comet that had been capturing the attention of expert and amateur astronomers alike, passed Earth early Friday morning, making its closest approach to our planet as ...

It might seem worlds away from the Earth we know. But can "Star Trek" teach us anything about the economics of our own ...

The interstellar object 3I/ATLAS is expected to make its closest approach to Earth mere days from now, coming within just 167 million miles — a significant gulf, but a mere stone’s throw on the cosmic ...

Comet 3I/ATLAS—the third interstellar object ever known to pass through our solar system—is accelerating and now approaching its closest point to Earth. “Significant” non-gravitational accelerations ...

Weeks after a rare interstellar comet made its closest pass to the sun, it will make it’s closest pass to Earth. The comet has traveled billions of miles through other systems in space. Its orbit is ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter. When you purchase through links on ...