Astronomers used James Webb Space Telescope data to determine the density of the universe's most mysterious "stuff." ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The James Webb Space Telescope has captured a breathtaking new view of the iconic Hubble Ultra Deep Field, revealing ...

Coming from one of the world's largest astrophysical research institutes, I can tell you, the anticipation across the global ...

The 1998 discovery that the universe is expanding at an accelerated rate raised new and profound questions about the nature and fate of the universe. Based on measurements of the speed of distant ...

Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

Not too long ago, if you wanted to witness the wonders of the universe, you'd need to lug around a bulky telescope and possibly spend hours making fine adjustments to zero in on celestial targets. ZWO ...

A conception of the James Webb Space Telescope orbiting the sun 1 million miles from Earth. Credit: NASA GSFC / CIL / Adriana Manrique Gutierrez In death, there can be great beauty. Astronomers ...

A slim crescent moon, the planet Venus, and the star Regulus will appear close together in the eastern sky before dawn on Friday, September 19. Binoculars or a small telescope can enhance the view, ...

NASA completes assembly of the Nancy Grace Roman Space Telescope. The observatory will enter final testing before launch, providing infrared surveys and cosmic data for astronomy research.