NASA's Dawn spacecraft is getting up close and personal with the giant asteroid, revealing rift valleys, mountainous uplifts and a belt of grooves near its equator
List of discoveries shows US contributions have declined, but Japanese, Russian and European work is on the rise.
Listen to the announcement of the 2011 Nobel Prize in Physics, to Saul Perlmutter, Brian Schmidt and Adam Riess, from the Royal Swedish Academy of Sciences. Following the formal announcement comes an explanation of the research, which tracked type Ia supernovae to discover that the expansion of the universe was accelerating, and a phone conversation with new Nobel laureate Brian Schmidt
Dark energy wins out in the end: Three U.S. scientists have been honored for their observations that type Ia supernovae indicate that the expansion of the universe is accelerating
Saul Perlmutter, Brian Schmidt and Adam Reiss share the 2011 Nobel Prize in Physics for their observations that type Ia supernovae indicate that the expansion of the universe is accelerating. Steve Mirsky reports
The WISE spacecraft's census of near-Earth asteroids lowers the population of the big, bad ones. John Matson reports
A diagram lost for more than 350 years documents a spectacular sky of 1630.
Error and Trial: Italian Scientists Face Prison as Earthquake Manslaughter Hearing Resumes This Weekend
Six renowned geophysicists are on the hot seat, but is it for failing to predict an earthquake or failing to clearly communicate their findings?
IBM and 3M have come up with an adhesive that will allow them to stack up to 100 semiconductors onto a single microchip. Larry Greenemeier reports
The top U.S. particle collider, now eclipsed by a more powerful European machine, will be switched off September 30
Fermilab finds the top quark—sort of
Finding the sixth quark involved the world's most energetic collisions and a cast of thousands
Even as the last protons spin through the most successful particle accelerator in history, physicists hope to conjure one final triumph
The defunct Upper Atmospheric Research Satellite (UARS) reentered the atmosphere at 12:01 A.M. Eastern time (0401 GMT) on Saturday, falling into the Pacific at 14.1 degrees south latitude and 189.8 degrees east longitude
Advances in motion-capture technology hold enormous potential as a tool for analyzing surveillance video for possible security threats
Sound impelled an electron in an energy well to a second energy well and back. It's a step toward controlled single-electron transfer for use in quantum computer electronic circuits. Sophie Bushwick reports
We asked a number of physicists for their reaction to the announcement of neutrinos breaking the cosmic speed limit
Letters to the editor from the June 2011 issue of Scientific American
Neutrino results challenge a cornerstone of Albert Einstein's special theory of relativity, which itself forms the foundation of modern physics