"The extent of the tail is gargantuan, stretching up to 9 million kilometers [5.6 million miles] long," said MIT astronomer Marc Hon.

Using the James Webb Space Telescope, researchers said they were able to detect signs of sulfur-based molecules called dimethyl sulfide or DMS, which on Earth are only produced by life, primarily ...

ESA/Hubble In a first for astronomers surveying the depths of space, carbon dioxide has been detected on an exoplanet – that is, a planet lying outside our solar system. Thanks to the coronagraph ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

A new milestone in the exploration of outer space. NASA has shared images of the progress of one of its most important missions, managing to capture the movement of one of the aste ...

Now, using the James Webb Space Telescope (JWST), astronomers may have cracked this puzzle, finding the first evidence of a ...