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Tag Archives: Astrophysics
Measuring the Sun’s Opacity
Experiments with oxygen plasma at extreme densities and temperatures give new transparency to our picture of the Sun’s interior. Continue reading
Experiments Refute Dark Matter Claim
Two direct-detection experiments see no evidence of a signal reported by their predecessor. Continue reading
Posted in APS Physics
Tagged APS Physics, Astrophysics, Dark matter, Particle Physics
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Unusual Plasma Waves Above Jupiter’s North Pole
A spacecraft observes a new oscillation mode in the low-density plasma. Continue reading
Dark Matter Detector Releases Best-Yet Result
Seven metric tons of liquid xenon get closer than ever to revealing WIMPs. Continue reading
Posted in APS Physics
Tagged APS Physics, Astrophysics, Dark matter, Particle Physics
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How Organic Molecules Survive in Space
The harsh interstellar environment ought to destroy these carbon-rich molecules; experiments reveal their secret weapon. Continue reading
Lithium Cosmic Rays Are Not Primordial
A precision measurement of cosmic rays at the International Space Station finds that lithium-7 is produced by the fragmentation of heavier nuclei. Continue reading
Ghana Reaps the Fruits of Science Investment
Emmanuel Proven Adzri shares how refurbishing the Ghana Radio Astronomy Observatory has driven economic growth in his country. Continue reading
Seeking Supernovae in Seafloor Sediments
Minerals exposed during an ancient Mediterranean Sea desiccation should reveal damage caused by muons, providing evidence of enhanced cosmic-ray fluxes. Continue reading
An Extraordinary CosmicAlignment
A rare configuration of seven galaxies aligned behind a galaxy cluster allows researchers to probe with high precision the dark matter distribution within the cluster. Continue reading
Posted in APS Physics
Tagged APS Physics, Astronomy, Astrophysics, Cosmology, Dark matter
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Meet HELIX, the High-Altitude Balloon That May Solve a Deep Cosmic Mystery
Every now and then, tiny particles of antimatter strike Earth from cosmic parts unknown. A new balloon-borne experiment launching this spring may at last find their source. Continue reading
Posted in Scientific American
Tagged Astrophysics, Cosmology, Particle Physics, Physics, Scientific American
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