The most dangerous asteroids are the most difficult to detect.” Carnegie Science’s Scott S. Sheppard’s caution is no ...

In April 2029, Apophis is predicted by NASA to come within 32,000 kilometers (20,000 miles) of the Earth's surface. Closer ...

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...

Colorado was rated the second-best state for meteor and asteroid viewing, according to a new study. High elevation, dark skies and numerous observatories contributed to Colorado's high ranking. The ...

The object is known as 2025 SC79, and it is 700 meters (2,297 feet) across. It goes around the Sun every 128 days, and it ...

Learn how astronomers spotted 2025 TF, an asteroid that passed just 266 miles over Antarctica in early October 2025.

On a fall evening in 2022, scientists at the Johns Hopkins University Applied Physics Laboratory were busy with the final stages of a planetary defense mission. As Andy Rivkin, one of the team leaders ...

Tonight's the night. Those with telescopes and clear skies have the chance to watch a very speedy asteroid cross a large swath of the southern sky during evening hours across much of the western ...

A fast-orbiting, 700-metre asteroid discovered within Venus's orbit highlights hidden near-Sun populations and underscores the difficulty of spotting potentially hazardous space rocks.

Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually.

The metal-coated asteroid Psyche may have had eruptions of molten iron and nickel on its surface. This situation was more ...