Cosmic “Ghost Towns:” Three Tiny Galaxies Unlock Ancient Universe Secrets
Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...
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Strange flashes from ancient galaxy deepen mystery of fast radio bursts
Unusual detection bolsters evidence that the mysterious signals can be caused by different astrophysical events.
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Dead Galaxy Emits Mysterious Radio Bursts
A dead galaxy, over 11 billion years old, has surprised astronomers with powerful radio bursts. Once thought to be lifeless, ...
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First-ever fast radio burst (FRB) found in an ancient, elliptical galaxy
Investigating the enigmatic origins of fast radio bursts (FRBs) has taken a surprising turn. These millisecond-long radio ...
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
Two mysterious fast radio bursts originated from wildly different places in space
Astronomers have traced two mysterious fast radio bursts from space to wildly different places, which suggests the phenomenon ...
Mysterious Space Signal Traced Across the Universe to an Ancient Dead Galaxy
Astronomers have traced a mysterious fast radio burst to an unexpected place — an ancient, massive galaxy far removed from ...