The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to protect Earth from the threat of an asteroid impact. By smashing a ...

Massive interstellar object 3I/ATLAS, larger than Manhattan, shows unusual glow pattern and planetary alignment that Harvard physicist calls potentially technological.

Is it an alien spaceship or an ancient comet? That’s the question puzzling UFO enthusiasts, NASA, and the European Space ...

Earlier this year, astronomers spotted a mysterious interstellar object, dubbed 3I/ATLAS, hurtling through the solar system ...

NASA’s Hubble Space Telescope has captured its most detailed image yet of interstellar comet 3I/ATLAS. The rare comet is ...

Alongside the planets will be the August 2025 full moon, called the sturgeon moon, which is expected to reach peak illumination on Saturday, Aug. 9, at 3:55 a.m. Eastern. To view the planets, it's ...

The object, officially titled 3I/ATLAS, was discovered in July and is currently traveling toward Earth at an estimated ...

The Hubble Space Telescope has captured a stunning image of a high-speed comet traveling through our solar system. Scientists ...

NASA’s Hubble Space Telescope has snapped images of a recently discovered interstellar visitor hurtling through our solar ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

New data from the James Webb telescope reveals that Pluto's strange atmospheric haze controls its climate, surprising ...

New images from the Hubble telescope show an extrasolar entity as it hurtles through our solar system at speeds of more than 130,000 mph (210,000 km/h).