Chiron went into retrograde (that is, apparent retrograde motion) on July 30, 2025, and will go back to normal on January 2, 2026. But unless you have a telescope or do some long-exposure photography, ...

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).

Astronomers using NASA’s James Webb Space Telescope have found strong evidence of a giant planet orbiting a star in the ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

The latest observations of 3I/ATLAS suggest it resembles comets from the outer reaches of our solar system, but may be ...

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into Earth's cosmic neighborhood.

Astronomers using NASA's James Webb Space Telescope (JWST) have found compelling evidence of a possible exoplanet orbiting ...

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

Far from being an icy enigma, Uranus is now known to radiate some of its own heat, hinting at a more dynamic history than ...

The Hubble Space Telescope estimates the comet's size at no more than 5.6 kilometers. It is the third known interstellar ...

NASA's Hubble Space Telescope has captured the clearest image of interstellar comet 3I/ATLAS, revealing new details about its size, speed, and mysterious origin. Discover what makes this cosmic ...

The orbiting telescope revealed a teardrop-shaped plume of dust around the nucleus as well as traces of a dusty tail.View on ...