New views of TOI-421 b by JWST gives insight into how the most common type of planet in the galaxy might form.

Venus will partner up with the giant planets Saturn and Neptune to form a line up in the pre-dawn sky on May 8, with ...

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

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

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, Amy Simon (NASA-GSFC), Michael H. Wong (UC Berkeley) / VISUALIZATION: Joseph ...

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.

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

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

A meteorite found in Antarctica in 2012 suggests Earth may have formed with the materials needed to make water, a new study ...

Though they don't orbit around our sun, sub-Neptunes are the most common type of exoplanet, or planet outside our solar ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?