At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

The Pentagon faces a critical moment as leadership turmoil, security leaks, and vacancies threaten its readiness amid global ...

Hubble’s 35-year journey showcases humanity’s boldest space achievements, capturing everything from new stars forming to ...

The Hubble Space Telescope marks its 35th anniversary with a stunning new image of the Sombrero Galaxy. This detailed view ...

The James Webb Space Telescope has revealed a rare "Einstein ring," revealing two distant galaxies in an optical illusion ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

The image is a mosaic stitched from multiple Hubble observations since the galaxy’s size exceeds Hubble’s narrow field of ...

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.

The University of Arizona has utilized state-of-the-art Magellan Adaptive Optics Xtreme technology to observe the PDS 70 ...

That's thanks to the extra details revealed by JWST's infrared optics, with its Mid-infrared Instrument (MIRI) in particular helping to draw out gas clouds and rings. Related: James Webb telescope ...

A team of scientists using the James Webb Space Telescope believe exoplanet K2-18b is a Hycean world, covered in a global ocean. Credit: Shang-Min Tsai / UCR illustration A team of scientists is ...