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Carbon Atmosphere Discovered On Neutron Star
Evidence for a thin veil of
carbon has been found on the
neutron star in the
Cassiopeia A supernova
remnant. This discovery
resolves a ten-year mystery
... > full story
Dark Matter And Dark Energy Make Up 95 Percent Of Universe, Detailed Measurements Reveal
A detailed picture of the
seeds of structures in the
universe has been unveiled.
These measurements put
limits on proposed
... > full story
Origin Of Cosmic Rays: VERITAS Telescopes Help Solve 100-year-old Mystery
Nearly 100 years ago,
scientists detected the
first signs of cosmic rays
-- subatomic particles that
zip through space at nearly
... > full story
NASA's Fermi Telescope Detects Gamma Rays From 'Star Factories' In Other Galaxies
Nearby galaxies undergoing a
furious pace of star
formation also emit lots of
gamma rays, say astronomers
using NASA's Fermi Gamma-ray
... > full story
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Laser-plasma Accelerators Ride On Einstein's Shoulders
November 2, 2009 — Using Einstein's theory of special relativity to speedup computer simulations, scientists have designed laser-plasma accelerators with energies of 10 billion electron volts (GeV) and beyond. These ... > full story -
Blast From The Past: Most Distant Stellar Object Gives Clues About Early Universe
October 29, 2009 — Astronomers studied the most distant object yet seen in the Universe, a giant stellar blast from more than 13 billion years ago, and learned tantalizing facts about the blast itself and the ... > full story -
Gamma-ray Photon Race Ends In Dead Heat; Einstein Wins This Round
October 28, 2009 — A pair of gamma-ray photons -- one possessed of a million times the energy of the other -- arrived at virtually the same instant at NASA's orbiting Fermi Gamma-ray Space Telescope, after a ... > full story -
Galaxy Cluster Smashes Distance Record
October 23, 2009 — The most distant galaxy cluster yet has been discovered by combining data from NASA's Chandra X-ray Observatory and optical and infrared telescopes. The cluster is located about 10.2 billion light ... > full story -
Catching The Interstellar Wind: Spacecraft Finds Ribbon-like Structure At Edge Of Heliosphere
October 16, 2009 — NASA's Interstellar Boundary Explorer, or IBEX, spacecraft has made it possible for scientists to construct the first comprehensive sky map of our solar system and its location in the Milky Way ... > full story -
First IBEX Maps Reveal Fascinating Interactions Occurring At The Edge Of The Solar System
October 16, 2009 — The first all-sky maps developed by NASA's Interstellar Boundary Explorer (IBEX) spacecraft, the first mission to examine the global interactions occurring at the edge of the solar system, reveal ... > full story -
Satellite Reveals Surprising Cosmic 'Weather' At Edge Of Solar System
October 16, 2009 — The first solar system energetic particle maps show an unexpected landmark occurring at the outer edge of the solar wind bubble surrounding the solar system. Scientists have now published these maps, ... > full story -
Cosmic Ray Decreases Affect Atmospheric Aerosols And Clouds
October 6, 2009 — Billions of tons of water droplets vanish from the atmosphere in events that reveal in detail how the Sun and the stars control our everyday clouds. Researchers have traced the consequences of ... > full story -
Heart Of A Galaxy Emits Gamma Rays
October 4, 2009 — The H.E.S.S. telescope system detects high-energy rays from the starburst region of a galactic system outside the Milky ... > full story -
Cosmic Rays Hit Space Age High
September 29, 2009 — Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's Advanced Composition Explorer spacecraft, galactic cosmic rays have just hit a Space Age ... > full story
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