Hubble views the star that changed the universe

(PhysOrg.com) -- Though the universe is filled with billions upon billions of stars, the discovery of a single variable star in 1923 altered the course of modern astronomy. And, at least one famous astronomer of the time ...

Swift and Hubble probe an asteroid crash (w/ video)

(PhysOrg.com) -- Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes. Data from NASA's Swift satellite and Hubble Space Telescope showed these ...

Suzaku shows clearest picture yet of Perseus Galaxy Cluster

(PhysOrg.com) -- X-ray observations made by the Suzaku observatory provide the clearest picture to date of the size, mass and chemical content of a nearby cluster of galaxies. The study also provides the first direct evidence ...

Hubble rules out one alternative to dark energy

(PhysOrg.com) -- Astronomers using NASA's Hubble Space Telescope have ruled out an alternate theory on the nature of dark energy after recalculating the expansion rate of the universe to unprecedented accuracy.

Swift survey finds 'missing' active galaxies (w/ Video)

(PhysOrg.com) -- Seen in X-rays, the entire sky is aglow. Even far away from bright sources, X-rays originating from beyond our galaxy provide a steady glow in every direction. Astronomers have long suspected that the chief ...

A Stellar, Metal-Free Way to Make Carbon Nanotubes

(PhysOrg.com) -- Space apparently has its own recipe for making carbon nanotubes, one of the most intriguing contributions of nanotechnology here on Earth, and metals are conspicuously missing from the list of ingredients. ...

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