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Why were galaxies so active in the early universe? We may be getting close to the answer
Early galaxies were star-forming machines, furiously gobbling up gas and spitting out stars. A new model helps explain why ...
Astronomers using the James Webb Space Telescope have made a surprising discovery about a galaxy long, long ago and far, far ...
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Old galaxies in a young universe?
The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to 13.8 billion years and much younger when we explore the universe at ...
Most messages are press releases about astronomical discoveries—okay, scratch that; most of them are spam, but science announcements are an easy second place. But I also get questions from readers ...
The Dark Energy Spectroscopic Instrument spent five years observing the sky from Arizona. Now, researchers have a trove of ...
New simulations show that early ultraviolet light controlled whether ultra-faint dwarf galaxies could form stars.
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Andromeda is headed toward the Milky Way, while other galaxies are moving away—and now we know why
Why is the Andromeda Galaxy moving toward us while other neighboring galaxies are speeding away? For decades, such galactic movements have puzzled astronomers. Now, computer simulations by Ewoud Wempe ...
This snapshot is just a small part of one of the most comprehensive and spectacular views yet of the universe — a web-like structure formed by millions of galaxies, stretching back to near the dawn of ...
The universe has a hidden structure, and a University of Virginia professor is mapping it in 3D, using 46 million galaxies ...
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