An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class of planets.

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner consistent with a large, distant planet.

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Thirty-five years later, NASA says Hubble has proven to have "opened a new window to the universe," with more than 1.6 ...

Thanks to JWST, we've learned key details about methanol — a key building block for organic compounds necessary for life — on ...

NASA scientists have sought to understand planet Jupiter, the gas giant whose mass is more than the rest of the planets in ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

The planetarium, located at 100 Center Ave., is open from 8 a.m. to 4 p.m. Monday and Tuesday; 8 a.m. to 7:30 p.m. Wednesday ...