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

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Experiments Refute Dark Matter Claim

Two direct-detection experiments see no evidence of a signal reported by their predecessor. Continue reading

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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

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Dark Matter Detector Releases Best-Yet Result

Seven metric tons of liquid xenon get closer than ever to revealing WIMPs. Continue reading

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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

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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

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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

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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

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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

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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

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