July 19, 2011
The Case for Parallel Universes
Why the multiverse, crazy as it sounds, is a solid scientific idea
Cosmology
Space & PhysicsJuly 14, 2011
Spacewalker Snaps a Close-Up of the Final Shuttle Visit to the Space Station
Astronaut Ron Garan took this photo of Earth during a six-and-a-half hour spacewalk on July 12. Garan has been at the International Space Station as the flight engineer for Expedition 28 since March, when he arrived on board a Russian Soyuz capsule (like the one docked at the upper left).
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July 13, 2011
NASA Chief to Congress: Save the James Webb Space Telescope
Charlie Bolden told Congress that the next-generation space telescope has greater potential for discovery than the iconic Hubble Space Telescope
Space & PhysicsJuly 7, 2011
Threat of James Webb Space Telescope Cancellation Rattles Astronomy Community
Space & PhysicsJuly 7, 2011
Supernovae Seed Galaxies with Massive Amounts of Dust
A supernova that went off in 1987 produced large quantities of dust, which may explain why galaxies in the early universe were so dusty
Space & PhysicsJuly 6, 2011
Beasts of the Stellar Zoo [Slide Show]
From yellow dwarfs to blue supergiants, stars continue to challenge astronomers' understanding of the universe
July 5, 2011
Isotopes Say New Origin Stories for Some Planets
Solar wind samples reveal that Earth, the moon and Mars have different isotopic ratios than the sun, indicating some additional additional wrinkles in the planetary origin scenario. Karen Hopkin reports
Space & PhysicsJuly 1, 2011
The Periodic Table of the Cosmos: 100 Years of the Hertzsprung-Russell Diagram
A simple diagram, which celebrates its centennial this year, continues to serve as the most essential conceptual tool in stellar astrophysics
Space & PhysicsJune 29, 2011
Brilliant, but Distant: Most Far-Flung Known Quasar Offers Glimpse into Early Universe
A gargantuan black hole has been spotted voraciously devouring material just 770 million years after the big bang
June 24, 2011
Cosmic Microwaves and Alloys Earn Kyoto Prizes
Space & PhysicsJune 23, 2011
Galaxy Cluster Collision Left a Clumpy Aftermath
The galaxy cluster Abell 2744 contains so many unusual phenomena that astronomers have dubbed it "Pandora's Cluster," after the mythological box said to contain all the world's ills.
Space & PhysicsJune 17, 2011
The Hole Picture: Growth of Black Holes and Galaxies Linked from an Early Age
By one billion years after the big bang, galaxies and their resident black holes were already growing in tandem