Once a realm of imagination and stargazing, the Solar System has now been revealed in stunning clarity through decades of space exploration. This video takes you on a breathtaking journey, showing ...

This phenomenon known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all present at the same time along a line in the night sky on Friday, NASA says.

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

Most known comets orbit the sun and are bound by the gravity of our solar system. But this object came from far beyond the pull of our Sun, traveling 137,000 miles per hour from another star.

– Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in our solar system. This happened about 4½ billion years ago.

It is only the third interstellar object ever spotted in our Solar System, although many others have probably passed unnoticed. The object gained an official name, 3I/ATLAS or C/2025 N1, on Wednesday.

A violent solar eruption on May 31 launched a coronal mass ejection (CME) hurtling toward Earth, triggering a rare G4-level geomagnetic storm alert. Captured in real-time by U.S. Naval Research ...

Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago.

A small percentage of the ejected objects — 0.03 percent — pass through our solar system, Gregg and Wiegert say, but none of the large bodies is close enough for telescopes to see.

A comet from a solar system outside our own was first noticed on July 1 by a NASA telescope located in Rio Hurtado, Chile, as part of the Asteroid Terrestrial-impact Last Alert System (ATLAS).

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Our solar system has been around for 4.6 billion years. While that sounds like a long time ...