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

Behold, the giants! The Hubble Space Telescope has completed a decade of observing Jupiter, Saturn, Uranus and Neptune.

Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If ...

This ZWO scope promises that anyone can capture high-quality images of stars, nebulae, and even the Sun, no imaging knowledge ...

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

While the extra-galactic stars provided a microlensing effect, large clusters of dark matter provided a macrolensing effect.

Formerly the Large Synoptic Survey Telescope, the observatory was renamed in 2020 to honor Vera Rubin, who died at 88 in 2016 ...

Astronomers used JWST and gravitational lensing to spot 44 individual stars in a galaxy 6.5 billion light-years away.

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

One of the first constellations amateur astronomers come to recognize, the Queen offers observers many worthy sights.

One of these missions is the Outer Planet Atmosphere Legacy (OPAL) project, which involves Hubble making yearly observations ...

From solar storms to "shooting stars" over Stonehenge, here are our top 10 favorite space photos of 2024 — and what they told ...