Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

Researchers using NASA’s James Webb Space Telescope have detected the strongest evidence yet for an atmosphere on a rocky ...

Space scientists look back on 30 years of exoplanet discoveries — from rows of massive ‘super-Earths‘ to worlds with perfectly synchronized orbits. It was also the start of a whirlwind of discovery.

Like a toddler right before naptime, TRAPPIST-1 is a small yet moody star. This little star, which sits in the constellation ...

A rogue planet is a world that has been ejected from the planetary system in which it originally formed. Because rogue planets do not orbit a parent star, they are cast adrift into interstellar space.

Joanna Barstow receives funding from the Science and Technology Facilities Council. She is also a Councillor and trustee for the Royal Astronomical Society. We now know of almost 5,000 planets outside ...

Learn more about brown dwarfs, the cosmic misfits that blur the line between planet and star.

The International Astronomical Union (IAU) defines a planet as a celestial body orbiting the Sun, possessing sufficient mass for a nearly spherical shape, and having cleared its orbital neighborhood ...

Our gas giants – Jupiter, Saturn, Uranus and Neptune – are helping us find out more about Jovian worlds further away. When you purchase through links on our site, we may earn an affiliate commission.

Theoretically, there is room for thousands. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The solar system contains eight planets: Mercury, ...