Astrophysics News


Unique Eclipsing Binary Star System Discovered by UCSB Astrophysicists

UC Santa Barbara Astrophysicists are the first to identify two white dwarf stars in an eclipsing binary system, allowing for the first direct radius measurement of a rare white dwarf.


Einstein's Theory Fights Off Challengers

Two new and independent studies have put Einstein's General Theory of Relativity to the test like never before. These results, made using NASA's Chandra X-ray Observatory, show Einstein's theory is still the best game in town.


Michael Turner Named Director of Kavli Institute for Cosmological Physics

The University of Chicago has named Michael S. Turner as director of its Kavli Institute for Cosmological Physics, effective March 29, in an ongoing commitment to probing some of the most puzzling scientific questions about the origin and evolution of the universe.


Fermi Telescope Probes "Dragons" of the Gamma-ray Sky

A new study of gamma rays shows that less than a third of the emissions arise from black-hole-powered jets from active galaxies.


Astronomically Large Lenses Measure the Age and Size of the Universe

Researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on a par with other techniques.


Massive Planet is Being Torn Apart, Providing Opportunity to Watch a Planetary “Death March”

A massive planet outside our Solar System is being distorted and destroyed by its host star, a finding that helps explain the unexpectedly large size of the planet, WASP-12b.


Kavli Prize Science Forum Announced; Inaugural Forum on International Cooperation in Science
John P. Holdren and Ernst-Ludwig Winnacker, will join leaders of international science societies and academies to discuss international cooperation in science.


Extreme Jets Take New Shape
Jets of particles streaming from black holes in far-away galaxies operate differently than previously thought.


NASA's Fermi Closes on Source of Cosmic Rays

New images from NASA's Fermi Gamma-ray Space Telescope show where supernova remnants emit radiation a billion times more energetic than visible light. 


Retrograde Spin of Supermassive Black Holes May Create Jets that Control Galaxy Evolution

Little is know about one of a black hole's fundamental properties, spin. But spin may be crucial to understanding the dynamics of a black hole's host galaxy.