Astronomers believe they may have uncovered evidence of a hidden Earth -size planet lurking in the outer solar system. Dubbed “Planet Y”, the proposed world could be nearly twice as close to Earth as ...

The planet Neptune has a large dark spot "with an unexpected smaller bright spot adjacent to it," inveru observations using ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

What can sub-Neptunes, exoplanets whose sizes are between Earth and Neptune, and which are between the known for their water-rich compositions, teach astronomers about both where and how to find life ...

"It confirms K2-18 b to be our best chance to study a potential habitable environment beyond the solar system at the present time." The saga surrounding Neptune-size "super-Earth" exoplanet K2-18 b ...

A team of astronomers led by the Center for Astrophysics | Harvard & Smithsonian has discovered a rare object far beyond Neptune, from a class known as trans-Neptunian objects, that is moving in ...

Neptune reached opposition at 9:00 A.M. EDT, rendering it visible throughout the night. Neptune, at magnitude 7.7, is not visible to the unaided eye but can be located 2.7° northeast of Saturn using ...