The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

A paper links dark stars to Webb telescope puzzles involving bright sources, dust-free galaxies, and early black holes.

Astronomers found a young galaxy cluster with unexpectedly hot gas, suggesting cosmic structures formed faster than once ...

An international team of astronomers has uncovered multiple evolutionary paths for the universe's most massive galaxies. Observations of ultramassive galaxies, each containing more than 100 billion ...

Astronomers sweeping through the archive of NASA's James Webb Telescope found a group of galaxies with an unknown combination ...

Long before modern telescopes, early astronomers mapped the heavens with math, myth, and sheer curiosity. This crossword quiz celebrates the minds who first charted the cosmos. When you purchase ...

Astronomers using NASA’s James Webb Space Telescope have made a groundbreaking discovery about how dust forms in some of the ...

In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big Bang—a cosmic Jekyll and Hyde that looks like any other galaxy when viewed in ...

A massive young galaxy cluster has been found glowing with super-hot gas billions of years earlier than expected, defying current theories.

NASM copy Purchased with Adopt-a-Book funds. Contents Preface: The dawn-light of Ravenna -- On the hilltop -- To the lighthouse -- The city of stars -- Poetry and sunspots -- "Black star-lore" -- ...

NASA’s Webb Telescope has identified compact, mysterious galaxies nicknamed “astronomy’s platypus.” These strange objects ...