NASA has completed assembly of the Nancy Grace Roman Space Telescope, preparing for final testing and launch by May 2027 to ...

NASA's Hubble Telescope has captured the explosive death throes of a star within the brilliantly glowing Calabash Nebula, providing new insights into stellar life cycles.

The fifth day of the 18th annual Space Telescope Advent Calendar features a close view of a distant and colorful spiral ...

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

A boom in satellites is brightening the night sky and hindering astronomers’ ability to study distant galaxies, sharpening ...

Here, we can see the star going through a rapid transformation from a red giant to a planetary nebula, during which it blows ...

Junk is accumulating in space at a fantastic pace, with millions of pieces orbiting the Earth, and humans need to figure out ...

The new Hubble image shows a compact, bright nucleus wrapped in clouds of gas and dust, which is called the coma ...

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

Hubble's stunning new image of interstellar comet 3I/ATLAS has ignited a scientific row, especially after a whistleblower ...

The final milestone in construction was reached on November 25, as technicians carefully joined the giant telescope's inner ...