Discovery astronauts launch in February to deliver the final set of solar arrays to the International Space Station.
Exploration History
This Month in Exploration
Visit every month to find out how aviation and space exploration have improved life for humans on Earth and in space.
Featured Missions
STS-119: A Final Station Power Up
Orbiting Carbon Observatory
NASA's first spacecraft dedicated to studying carbon dioxide, the leading human-produced greenhouse gas driving changes in Earth's climate.
Kepler: The Search for Planets
Kepler will monitor 100,000 stars, searching for signs of planets -- including ones as small as or smaller than Earth.
 "International Space Station")
 "orion orbiting the moon")