Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something very strange and very hot.

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

NASA has released its first image of a planet outside of our solar system. Astronomers used NASA's James Webb Space Telescope to take a direct image of the exoplanet, described as a "gas giant." NASA ...

Just decades after the first exoplanets were identified, our database of the distant worlds—monitored by the NASA Exoplanet Science Institute—has breached a new threshold. Now, astronomers have ...

For the first time, astronomers have witnessed the early stages of planet formation around a distant young star, HOPS-315, thanks to groundbreaking observations made using theJames Webb Space ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

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.

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and Earth. The authors dubbed it Planet Y.