C02 in Space
Astronomers have detected carbon dioxide on a planet outside our solar system for the first time.
Space Exploration
Space Ship Gravity
Spinning spaceships could create artificial gravity in principle but not in practice.
Lake on Titan
Scientists have confirmed the existence of a large, liquid lake on Saturn's moon Titan.
Weighing Black Holes
A new technique helps scientists measure the mass of giant black holes.
Seeing in STEREO
Solar physicists see the sun in 3-D with NASA's STEREO Solar TErrestrial RElations Observatory.
Space Names Roundup
Pluto may have lost its status as a planet, but it's inspired a whole new category for planetoids.
Lunar Dust
Moon dust not only gets into space suits, it could jeopardize the health of future astronauts.
Radiation Protection
Scientists are taking lessons from tumor cells to fight the damaging effects of radiation and …
Space Radiation
Exposure to radiation in space could make astronauts prone to cancer.