Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth? A discovery ...

Earth" that is located about 154 light-years away and is nearly twice as big and four times as massive as our planet.

EXCLUSIVE: Scientists say the discovery of a Jupiter-like planet promises to further understanding of planetary systems.

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

Researchers identified the likely planetary candidate’s infrared light after blocking out its host star’s overwhelming glare ...

A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It ...

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

NASA has discovered 3I/ATLAS, only the third known interstellar object, now passing through our solar system from the ...

All eyes are on Comet 3I/ATLAS as astronomers worldwide chase the exotic ice ball through our solar system ...

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

A fluffy, Jupiter-sized planet may be triggering deadly flares from its star, leading to the slow destruction of its own ...