Kevin Grazier is a planetary physicist at NASA's Jet Propulsion Laboratory and is a science advisor for the new SyFy show "Defiance."
Astronomers reveal most distant galaxy yet seen by humankind.
Upcoming centennial brings together scientists and artists to exalt in discovery.
Quantum satellites may beam down powerful data encryption keys.
'Extrasolar cartography' technique could provide rough pictures of alien worlds.
Sighting may help improve understanding of the early universe.
The first magnetic fields appeared randomly after the Big Bang.
New research corrects misinterpretations of faraway stars' brightnesses and distances.
As the year draws to an end, we take a quick look at some of the most popular Inside Science content of 2012.
Astronomers identify likely lineage using radioactive metals.
