The discovery of interstellar objects passing through our solar system has opened a new chapter in astronomy. To date, only three confirmed interstellar visitors have been detected: 1I/ʻOumuamua in ...

Every few years, something strange drifts into our solar system. However, this object is not from the family of the Sun’s planets, asteroids, or comets. Instead, it comes from the vast darkness of ...

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, ...

For the first time, scientists used the combined power of NASA's Hubble and James Webb Space Telescopes to study some of the most far-flung bodies in our solar system, trans-Neptunian objects (TNOs).

Interstellar comet 3I/ATLAS is now on its way out of our solar system, never to return. The comet was only the third-ever detected object to originate from outside our solar system. Traveling at high ...

Our solar system creates many comets that it then spits out into the inky vastness of space, presumably never to return. Only, that may not be the case forever. According to a preprint study available ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically different from anything known to have ever formed around our sun Astronomers ...

Harvard astrophysicist Avi Loeb has issued a startling warning that the interstellar visitor 3I/ATLAS may be dragging a 'swarm' of unknown objects across our Solar System. This claim, if verified, ...

An image of interstellar comet 3I/ATLAS captured by a telescope in Hawaii International Gemini Observatory / NOIRLab / NSF / AURA / B. Bolin Image Processing: J. Miller & M. Rodriguez (International ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

This summer, scientists spotted an incredibly rare visitor to Earth’s solar system—a comet, now known as 3I/ATLAS, that entered our solar system from the galaxy beyond and is zipping past the sun at a ...

It may not feel like it, but everything in the universe is in constant motion. Our Sun, with all its planets, orbits the center of the Milky Way, flying through the cosmos at around 450,000 miles per ...