What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, literally and figuratively. The extrasolar planet, or "exoplanet," designated ...

Since 1982, over 1 million participants have graduated from this program. What is this program? Space Camp! It is a camp for kids from all over the world, at the Space and Rocket Center in Huntsville, ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Professional and amateur astronomers alike love to share facts about our amazing universe: “The brightest star is…,” “A black hole is…,” and lots more. These facts are so incredible that we sometimes ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Researchers are studying eccentric warm Jupiters, giant exoplanets that follow odd, elongated orbits unlike anything in our solar system.

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between five and 18, plus hundreds of potentially undiscovered ones, depending on whom ...

An international team of researchers has just revealed the existence of three Earth-sized planets in the binary stellar ...