Space
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Space
Revving up particles in the cosmos
Newly recorded gamma rays from a microquasar may reveal how the black holes or neutron stars powering them can accelerate particles to enormous energies.
By Ron Cowen -
Space
Moon crash reveals crater held water
Plume of lunar material contained roughly 25 gallons of vapor and ice.
By Ron Cowen -
Space
Chemical fingerprint found for planet hunting
The amount of lithium in the atmosphere of sunlike stars is a powerful indicator of whether such stars have planets, a new study reveals.
By Ron Cowen -
Space
The Milky Way, aglow with activity
Combining infrared and X-ray images from three orbiting observatories, NASA has unveiled a never-before-seen composite portrait of the Milky Way’s bustling center.
By Ron Cowen -
Space
Signature of antimatter detected in lightning
The signature of positrons has been found for the first time in gamma rays associated with storms on Earth.
By Ron Cowen -
Space
A little bit of gamma-ray music
BLOG: Art and science meld during a musical performance for the Fermi Gamma-ray Space Telescope
By Ron Cowen -
Space
Gamma-ray sources guide astronomers to pulsars
Gamma-ray emissions are providing a guide to finding the compact, rapidly rotating remnants of massive stars known as pulsars.
By Ron Cowen -
Space
Giant galaxy graveyard grows
The largest known galactic congregation is bigger than astronomers thought—and its inhabitants are all dead or dying.
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Space
Volcanic and ferric surprises on Mercury
Volcanic activity is more recent than expected, MESSENGER shows on its third flyby of the planet. Also, surface iron occurs as oxides.
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Space
New way to help avoid a space shuttle disaster
A new technique to make shuttle launches safer combines tricks from particle colliders, moon landings and vulture tracking.
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Space
Cosmic rays traced to centers of star birth
By detecting gamma rays, a new generation of telescopes bolsters theory that supernovas are origin of some cosmic rays
By Ron Cowen -
Space
The Drake Equation Turns 50: An interview with Frank Drake
The astronomer shares his name with the equation that quantifies the number of detectable civilizations in the Milky Way.
By Nadia Drake