Exoplanets, or planets which reside outside of the Solar System, can be wild and extremely unpredictable places. Now a planet ...

Forget what you learned in school. The solar system isn't just a flat disc of planets it's a 3D bubble moving through space.

Using a powerful combination of space-based measurements and Subaru’s advanced imaging, astronomers have discovered two rare companions, one of which enables a key test for NASA’s Roman Space ...

The twin telescopes of the Gemini Observatory mark 25 years of discovery as students name distant nebula Ua ʻŌhiʻa Lan. The ...

See imaginative exoplanet worlds by St. Ann’s fifth graders at Blakemore Planetarium, Museum of the Southwest, on view ...

Moon’s precursor planet, Theia, disappeared billions ago, leaving scientists no direct chemical evidence to support the hypothesis. Now a team of astromers in France, Germany and the United States ...

About 4.6 billion years ago, a celestial cloud collapsed, paving the way for our solar system to form. Then, a nebula with strong gravitational pull took shape, kick-starting the birth of the sun. But ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...