From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for ...

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

NASA's Roman Space Telescope is preparing for launch in 2027, with a mission to study distant galaxies and explore dark ...

A rare breed of star recently discovered by the Hubble Space Telescope spins faster by feeding on its stellar siblings.

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

Capturing images of individual stars in distant galaxies has generally been considered impossible for decades. But NASA’s ...

Since the middle of the month, four of the five brightest planets in the night sky have been visible after sunset and will ...

Such simulated testing will help NASA determine how the telescope will perform in real-world launch conditions to ensure the spacecraft is tough enough to endure flight into orbit. One of the most ...

View the planets and night skies from home - Heavens above! Your guide to the best telescopes for stargazing, created for all ...

Two NASA astronauts are currently hard at work in space, patching up an instrument called NICER (Neutron star Interior ...