NASA announced Tuesday it had narrowed down to two options the reworked Mars Sample Return mission aiming for a cheaper and ...

Taking advantage of a cosmic 'double lens,' astronomers resolved more than 40 individual stars in a galaxy so far away its light dates back to when the universe was only half its present age.

The galaxy Dragon Arc was observed along the line of sight to the galaxy cluster Abell 370, which acts as a cosmic magnifying glass.

Photos from the James Webb Space Telescope have revealed more than 40 stars within the gravitationally lensed "Dragon Arc" ...

Astronomers used NASA's James Webb Space Telescope to reveal 44 stars in a galaxy so far away, its light dates to when the universe was half its age.

In 2017, astronomers discovered the interstellar visitor 'Oumuamua. In 2023, we reported the discovery of seven solar system ...

Galaxies are not islands in the cosmos. While globally the universe expands—driven by the mysterious "dark energy"—locally, ...

A phenomenon called gravitational lensing turned a galaxy into a "hall of mirrors of cosmic proportions," allowing for the ...

Researchers using the James Webb Space Telescope have imaged individual stars in the Dragon Arc galaxy thanks to ...

"I never dreamed of Webb seeing them in such large numbers." ...

Physicists have proposed a solution to a long-standing puzzle surrounding the GD-1 stellar stream, one of the most ...