Astronomers discover Ammonite, a rare icy object beyond Pluto, challenging Planet Nine theory and offering clues to the solar system’s ancient origins.

As the Moon reaches New, advanced observers can try photographing 3I/ATLAS while everyone can enjoy nebulae and more in the ...

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda galaxy. Zoom in and explore.

From the water that covers most of it to the moon that orbits it, here are some bizarre things about our home planet that science still doesn't completely understand.