In a New 223-Megapixel Image, NASA Captures 16.5 Million Stars of the Cigar Galaxy — Colossal
NASA’s James Webb Space Telescope is back with another stunner: a new 223-megapixel composite featuring about 16.5 million…
JWST Confirms Most Distant Gravitational Lens: Galaxy Cluster Defies Cosmic Formation Models
NASA’s James Webb Space Telescope has confirmed that a galaxy cluster 10.4 billion light-years away is the most…
Astronomers Discover a Sleeping Giant: Ancient Black Hole 6 Billion Times the Sun’s Mass
James Webb Space Telescope (JWST) image of the highly distorted red galaxy MRG-M0138 seen through a foreground cluster…
James Webb Space Telescope Made a Salty Discovery in This Unusual Exoplanet’s Skies
James Webb Space Telescope (JWST) observations have revealed the colorful secret of the Pink Planet, the coldest object…
James Webb reveals a hellish exoplanet where dawn and dusk have wildly different chemistry
James Webb Space Telescope (JWST) observations suggest that the two day-night boundary zones on the gas exoplanet WASP-121…
JWST finds rare planet with different atmospheric conditions at dawn and dusk
WASP-121 b is split between extremes. One side faces its star nonstop and burns at about 2,770 Kelvin.…
Galaxy-killing wind may explain why giant galaxies died so early
A massive galaxy in the early universe seems to be growing itself toward ruin. While it churns out…
Astronomers Discover Two Monster Black Holes Creating a Cosmic Void as They Merge
Artistic depiction, for illustrative purposes online. Space is usually crowded at the center of a giant galaxy. Stars…
NASA’s $4 Billion Roman Space Telescope Heads To Florida For Launch
WFIRST, shown here in an artist’s rendering, will carry a Wide Field Instrument to provide astronomers with Hubble-quality…
Neptune’s Moon May Have Survived Ancient Cataclysmic Event
NEED TO KNOW Neptune’s moon Nereid may be the lone survivor of an ancient cataclysmic event, scientists have…
JWST Identifies LAP1-B as the Most Chemically Primitive Galaxy on Record: Chemistry of Universe’s First Stars
A tiny galaxy observed just 800 million years after the Big Bang has yielded the strongest observational evidence…
Jupiter-like exoplanet helping scientists rethink how solar systems form
A planet so distant that its starlight began traveling toward Earth around the Middle Ages has given one…