Over the course of several hours, technicians meticulously connected the inner and outer segments of NASA’s Nancy Grace Roman Space Telescope.

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

Astronomers have spotted a distant world "shedding" its atmosphere into space in real time, creating a giant cloud of helium ...

The roar inside NASA’s acoustic test chamber reached 138 decibels a level louder than a jet engine at close range-yet the ...

Observations of the supermassive black hole at the heart of the Milky Way, Sagittarius A*, collected by the James Webb Space ...

NASA engineers have successfully completed testing on one half of the Nancy Grace Roman Space Telescope — a key step in making sure this future observatory will perform as expected once it reaches ...

The James Webb Space Telescope has peered through cosmic dust to reveal new details and a stunning image of a rare type of galaxy. The space observatory's latest image shows the Cartwheel galaxy, a ...

NASA’s James Webb Space Telescope has shown us images of space we’d never see otherwise, and one of the latest wonders it has ...

The Hubble Space Telescope is known for its incredible photos of outer space, but this maybe the happiest image it's captured. The galaxy cluster SDSS J1038+4849 appears to be smiling for the camera!

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.

NASA 's James Webb Space Telescope has revealed that an exceptionally rare star duo in the Milky Way has a third companion — ...