Harvard astrophysicist Avi Loeb suggests interstellar object 3I/ATLAS could be far more massive than previously thought.

Anyone hungry for the icy crunch of a Pluto -like body? No? Well, one nearby white dwarf is going all in on a Pluto-esque ...

NASA's Hubble Space Telescope has gotten an up-close look at a headline-grabbing object known as 3I/ATLAS that has recently wandered into Earth's cosmic neighborhood from far away. The image, which ...

The Manhattan-sized interstellar object 3I/ATLAS will buzz past Mars this week — making its closest pass to any planet on its ...

Speaking of Loeb, you might recall that in 2017, he sparked a major controversy in the scientific community by suggesting ...

The Habitable Worlds Observatory is poised to tell us whether Earthlike planets are common—if it can get off the ground ...

Hundreds of scientists and engineers, NASA leaders, lobbyists, congressional staffers and Senator Mark Kelly of Arizona are also discussing the search for ET. Surveilling alien worlds for signs of ...

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...

The Hubble Space Telescope snapped the sharpest image yet of a comet visiting our solar system from another system. NASA and the European Space Agency unveiled the photos on Thursday. The comet, ...

Ever since the comet 3I/Atlas was spotted, it has sparked curiosity—not just from astronomers and physicists, but from anyone ...

"This view includes new data and is the first to combine Hubble observations made at infrared, optical and ultraviolet wavelengths." NASA and the European Space Agency (ESA) just released a stunning ...

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