Exoplanets are planets that orbit stars other than the sun and thus exist outside the solar system. The word "exoplanet" ...

Leaving the solar system is just the beginning of an even greater mystery. This video explores the immense distances between ...

Scientists may have just uncovered 10,000 more possible planets lurking beyond our solar system. A new study published by ...

For astrobiologists, the search for life beyond our solar system could be likened to where one would look in a vast desert—essentially, where there's water. And it turns out that one of the most ...

Current estimates suggest 3I/ATLAS may be up to 12 miles in diameter. According to physicist Marshall Eubanks, the object appears to be arriving from the thin galactic disk, the plane in which most ...

AMES, Iowa – An international team of astronomers has used nearly three years of high precision data from NASA’s Kepler spacecraft to make the first observations of a planet outside our solar system ...

Discovery: On July 2, 2025, astronomers confirmed Comet 3I/ATLAS, marking only the third interstellar object (ISO) ever detected passing through our Solar System, after 1I/ʻOumuamua (2017) and ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

Pluto was believed to be the only body beyond Neptune with an atmosphere. Now, a new discovery in our solar system is challenging that assumption.

Sub-Neptune exoplanets tend to be much closer to their host star than Earth is to the Sun and are thought to have atmospheres made of steam over layers of an exotic phase of water that behaves like ...