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

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 ...

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

These types of exoplanets are some of the most common in our galaxy - but they've remained mysterious until now.

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

As the night sky became polluted with light from electrified cities, people built planetariums. Today, they’re more ...

Astronomers using NASA’s James Webb Space Telescope have taken a major step toward understanding a puzzling type of planet ...

In an unassuming industrial park 30 miles outside Boston, engineers are building a futuristic machine to replicate the energy that powers the stars. If all goes to plan, it could be the key to ...

Astronomers using the James Webb Space Telescope (JWST) have made an unprecedented discovery that promises to reshape our ...

Elon Musk, concluding his work with DOGE, emphasizes Mars colonization as crucial for humanity's survival, citing the Sun's ...

In an unassuming industrial park 30 miles outside Boston, engineers are building a futuristic machine to replicate the energy that powers the stars. If all goes to plan, it could be the key to ...