Astronomers have identified 2025 SC79, a new asteroid with a remarkably fast 128-day orbit, placing it among the second-fastest ever observed. This "twilight asteroid" orbits close to the Sun, ...

Contrary to online rumors, Earth still only has one true moon, but astronomers have discovered a so-called 'quasi-moon.' Here's what it is.

Earth still only has one true natural satellite — our 2,159-mile-wide moon oribiting about 239,000 miles away. However, ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically ...

The discovery of a new asteroid in the Earth's orbit around the sun has led to chatter that it's a second moon.

A newly discovered space rock zoomed safely by Earth on Wednesday (Oct. 15) at only about a quarter of the average distance ...

UN launches a global planetary-defence campaign as interstellar comet 3I/ATLAS speeds past Earth, sparking both scientific ...

The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...

The asteroid's neck, or "collum," — which joins the two lobes — has been named Windover. The name comes from the Windover Archaeological Site, which is near Cape Canaveral Space Force Station in ...

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

ROME — Pope Gregory XIII, the 16th century pontiff responsible for what is today known as the Gregorian calendar, now has another, celestial claim to fame. A working group of the International ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The asteroid Donaldjohanson as seen by the Lucy Long-Range Reconnaissance Imager (L'LORRI). This ...