Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

A comet has entered the Solar System from interstellar space and will pass through the inner planets later this year, NASA ...

Astronomers this week confirmed the discovery of an interstellar object racing through our Solar System – only the third ever ...

A new interstellar object has been spotted careening into the solar system at an extremely unusual, hyperbolic trajectory. If ...

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The James Webb Space Telescope (JWST) has unlocked the depths of interstellar space with unprecedented clarity, offering humanity a high-resolution window into the cosmos. Harnessing this newfound ...

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

To Unlock Interstellar Travel, Scientists Are Building the World’s Most Powerful Laser Beam A lightsail built in one day could travel at 20 percent the speed of light. That shouldn’t be possible.

Dubbed 3I/ATLAS, the comet poses no danger to Earth and will remain roughly 150 million miles away as it speeds by.

An illustration of one of the twin Voyager spacecraft, which rely on radioisotope thermoelectric generators to convert heat into electricity, in interstellar space. Credit: NASA/JPL-Caltech When ...