Protoplanetary disk. Figure from a computer simulation visualizing the formation of planets (https://svs.gsfc.nasa.gov/12278 ). Photo: NASA/JPL-Caltech. August 22, 2024, Mountain View, CA - An ...

A hidden structure at the farthest reaches of our solar system is challenging long-held theories. Using advanced simulations, ...

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray rocks ...

In 2019, astronomers spotted something incredible in our backyard: a rogue comet from another star system. Named Borisov, the icy snowball traveled 110,000 miles per hour and marked the first and only ...

The article systematically clarifies fundamental astronomical distinctions, addressing common confusions among beginners regarding celestial objects and phenomena. It differentiates between various ...

New research may shine a light on part of outer space's great mysteries: the Oort Cloud. The Oort Cloud is the name given to a theorized group of potentially trillions of icy objects on the edge of ...

These asteroids produce meteor showers with even smaller particles, showing their pebble building blocks experienced even more aggressive fragmentation. "While there are exceptions in both groups, the ...