Leading Light: What Would Faster-Than-Light Neutrinos Mean for Physics?
Most physicists are betting against the idea that neutrinos can pierce the cosmic speed limit, but that has not stopped some researchers from exploring the implications
The Dark Side of the Milky Way
Dark matter is not just a puzzle. It is a solution
Star-Crossed: Milky Way's Spiral Shape May Result from a Smaller Galaxy's Impact
Encounters with the Sagittarius Dwarf Galaxy could have had huge effects on the structure of the Milky Way
Does the Multiverse Really Exist?
Proof of parallel universes radically different from our own may still lie beyond the domain of science
Rotation Rate Could Pin Down Age of Stars
A new study may help scientists determine when stars were born
News Scans
In Brief
NASA Budget Cuts Threaten Two New Telescopes
Flagship missions at risk as astrophysics funding shrinks.
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
Beasts of the Stellar Zoo [Slide Show]
From yellow dwarfs to blue supergiants, stars continue to challenge astronomers' understanding of the universe
Leonard Susskind: The Bad Boy of Physics
Leonard Susskind rebelled as a teen and never stopped. Today he insists that reality may forever be beyond reach of our understanding
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
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