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AstronomyPlanet potential
Observations with the Submillimeter Array on Hawaii's Mauna Kea reveal that, despite their bombardment by a stellar bully, the disks in Orion have enough material to form planets.
By Ron Cowen -
PhysicsWhy isn’t the sky violet, Daddy?
A new analysis of why the sky looks blue reveals that the reason may be the combined effects of the atmosphere and of our eyes' color-sensing apparatus.
By Peter Weiss -
Bipolar kids harbor unique brain trait
Children and teenagers with bipolar disorder, a severe mental ailment that involves sharp mood swings, display unusually low tissue volume in a brain area involved in learning to regulate emotions.
By Bruce Bower -
PhysicsIn search of the imperfect nanocrystal
Semiconductor nanocrystals can incorporate property-enhancing impurities into their growing structures as long as the crystals have facets onto which such atoms can strongly adhere.