Dwarf planet Ceres now appears less like a dead rock and more like a world that may have briefly brimmed with potential for ...

New Hubble Space Telescope imagery of the Saturn show it's 'ring spokes' in orbit around the gas giant planet. Credit: ...

Get ready to explore the Red Planet — our dusty, windswept neighbor that's captured human imagination for centuries. Mars is ...

Fresh results from near-infrared instruments foretell a bright future for finding life elsewhere in the Milky Way ...

An international team of astronomers, co-led by researchers at the University of Galway, has made the unexpected discovery of ...

When NASA's Nancy Grace Roman Space Telescope launches in October 2026, it won't just be peering into the distant universe to ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

NASA’s James Webb Space Telescope has detected strong evidence for a giant planet orbiting Alpha Centauri A, the nearest ...

On Aug. 24, 2006, the International Astronomical Union (IAU) decided that Pluto wasn't a planet anymore. Instead, Pluto is ...

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

Prior to flybys, scientists used mathematical laws and observation to determine the characteristics of the planets.