Though our solar system and the movement of its planets appear relatively sedate, there are many things that could upset the ...

Explore the world of exoplanets—distant planets that captivate scientists. Visit ExtremeTech to learn what makes them so fascinating. Start your journey.

Thousands of exoplanets have been discovered since the 1990s, including "hot Jupiters," "super-Earths" and other types of alien worlds.

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

Exoplanets make up an exciting field of astronomy and offers an amazing opportunity to learn how our planet may have formed.

Readers doubtless know that metals expand when heated. As explained in a NASA blog post that’s a problem for space telescopes ...

Classified as a super-Earth and a sub-Neptune, these two new celestial bodies are among the most common types of exoplanets found in the Milky Way galaxy, yet are absent from our own solar system.

A unique new material that shrinks when it is heated and expands when it is cooled could help enable the ultra-stable space ...

Astronomers have located a rare exoplanet on the edge of the Milky Way.

There might be many more Earth-like worlds out there, for example, but because these are smaller than other types of exoplanet they are harder to spot using current methods.

The exoplanet could have two very different types of atmospheric setups. An Earth-like atmosphere made up of oxygen, nitrogen, and other life-friendly elements means it could support some types of ...