Astronomers spying on a stellar system located dozens of lightyears from Earth have, for the first time, observed a troubling fireworks show

Astronomers have discovered an unusually massive black hole at the heart of one of the Milky Way’s dwarf satellite galaxies, called Leo I.

A chunk of rock and iron, which was 60 feet across, served as a violent reminder that Earth, bombarded daily with tons of space-going debris

Watch as eight stars skirt a black hole 1 million times the mass of the Sun in these supercomputer simulations.

NASA plans to crash a spacecraft traveling at a speed of 15,000 miles per hour into an asteroid next year to test 'planetary defense'.

A near-Earth asteroid named Kamo`oalewa could be a fragment of our moon, according to a new paper. Kamo`oalewa is a quasi-satellite.

A NASA sounding rocket will observe a nearby star to learn how starlight affects the atmospheres of exoplanets in the hunt for life.

Dozens of space-based telescopes operate near Earth and provide incredible images of the universe. Imagine a telescope in the outer system.