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.

Picture this: a small audience is quietly ushered into a darkened room. They gasp in awe, as a brilliant night sky shines above. They wonder - as many ...

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

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, ...

An astronomer breaks down 3 key components that allow researchers to make groundbreaking discoveries — and decide when ...

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

The Earth started as a mixture of gas and dust around the Sun and grew as it collided with asteroids and dust particles.

By comparing those fingerprints to 20 different molecules that they would potentially expect to observe in the atmosphere, ...

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

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

The Psyche spacecraft launched nearly two years ago and is currently on its way to rendezvous with a unique asteroid in an ...