(EL PASO COUNTY, Colo.) — Peterson Space Force Base held the grand opening of a new, innovative running trail on Tuesday, ...

Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Astronomers have found a distant celestial body — ...

Astronomers have identified a strange new kind of exoplanet that challenges how scientists classify worlds beyond our Solar System. The planet, L 98-59 d, appears to contain a vast ocean of molten ...

How does fine dust aggregate into building blocks that ultimately form entire planets like our Earth? A research team led by ...

Earlier estimates of its age were around 7 billion years, but a new study suggests it’s much older.

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory about the possibility of a giant ninth planet. The dwarf planet's existence ...

Using the James Webb Space Telescope, astronomers have discovered an example of a new class of exoplanet, and it smells like ...

A study led by the University of Oxford has identified a new type of planet beyond our solar system—one that stores large ...