Are we alone in the universe? While no one can say for sure, space scientists know where to start looking—exoplanets. An ...

The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Here's where the James Webb Space Telescope comes in. Its advanced technology, including its large mirror and suite of ...

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

What can Venus-like exoplanets, also known as exoVenuses, teach us about our own solar system and potentially finding life ...

Only a few years ago, astronomers heralded the discovery of a rocky world circling the sun 's closest space neighbor, Proxima ...

The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar ...

NASA’s James Webb Telescope captured direct images of gas giants in HR 8799, revealing their carbon dioxide-rich atmospheres.

A new study is challenging the science of the formation of sub-Neptunian planets, which are the most common in the Milkey Way ...

Scientists from UNSW Sydney have located a potential new exoplanet -- a planet that orbits a star outside of our solar system -- using a technique known as 'transit timing variation'. In research ...

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...

Young, close-orbiting exoplanets known as sub-Neptunes may form farther from their stars and migrate inward or lose their ...