News tagged with gamma rays

Dark matter dominates in nearby dwarf galaxy

Dark matter is called "dark" for a good reason. Although they outnumber particles of regular matter by more than a factor of 10, particles of dark matter are elusive. Their existence is inferred by their gravitational influence ...

dateNov 18, 2015 in Astronomy
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Dark matter and particle acceleration in near space

Peering into darkness can strike fear into the hearts of some, but a new space telescope will soon peer into the darkness of "near space" (within a few thousand light years of Earth). Scientists are using the telescope to ...

dateNov 09, 2015 in Astronomy
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Shocks in a distant gamma-ray burst

Gamma ray bursts (GRBs)—flashes of high-energy light occur about once a day, randomly, from around the sky—are the brightest events in the known universe. While a burst is underway, it is many millions of times brighter ...

dateSep 14, 2015 in Astronomy
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How do stars go rogue?

Rogue stars are moving so quickly they're leaving the Milky Way, and never coming back. How in the universe could this happen?

dateAug 25, 2015 in Astronomy
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