NASA - National Aeronautics and Space Administration

STS-127

Commander Mark Polansky will lead a 16-day mission that features five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory.

International Space Station: Expedition 20

Commander Gennady Padalka leads a six-member crew of astronauts from Canada, Europe, Japan, Russia, and the United States.

GOES-O Weather Satellite Launches

The latest Geostationary Operational Environmental Satellite will aid the nation's meteorologists and climate scientists, providing familiar weather pictures seen in daily newscasts in the U.S.

GOES-O

The Geostationary Operational Environmental Satellite (GOES)-O represents the newest generation of environmental satellites.

Kepler

Kepler will monitor 100,000 stars, searching for signs of planets -- including ones as small as or smaller than Earth.

Orbiting Carbon Observatory

NASA's first spacecraft dedicated to studying carbon dioxide, the leading human-produced greenhouse gas driving changes in Earth's climate.

Phoenix Mars Lander

The search for possible conditions for life in the Martian arctic.

IBEX

A mission to achieve the first global observations of the region beyond the termination shock at the very edge of our solar system.

Ocean Surface Topography Mission/Jason 2

The joint NASA-French satellite will help scientists better monitor and understand rises in global sea level, study the world's ocean circulation and its links to Earth's climate.

Sailing Ships in Space? Maybe.

Later this summer NASA will attempt to deploy and operate the first spacecraft in low Earth orbit propelled only by the power of sunlight.

GLAST Launches on Gamma Ray Mission

The Gamma-ray Large Area Space Telescope will answer questions about supermassive black hole systems, pulsars and the origin of cosmic rays.

NASA Gives 'Go' to Hubble Upgrade

Shuttle astronauts will make one final house call to NASA's Hubble Space Telescope as part of a mission to extend and improve the observatory's capabilities through 2013.

MESSENGER

NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) is the first mission sent to orbit the planet closest to the sun.

Constellation: NASA's Future

A new generation of spacecraft will carry humans to the moon, Mars and beyond.

Dawn

Dawn launched in September, becoming the first spacecraft ever planned to orbit two different bodies after leaving Earth. The spacecraft will orbit Vesta and Ceres, two of the largest asteroids in the solar system.

AIM: Aeronomy of Ice in the Mesosphere

AIM's two-year mission is to study Polar Mesospheric Clouds, the Earth’s highest clouds, which form an icy membrane 50 miles above the surface at the edge of space.

STEREO Launches Hi-Def Solar Imagers

STEREO has successfully launched on its sun imaging mission.

Volcanic Plume on Io

NASA's New Horizons spacecraft launches on mission to visit Pluto, its moon Charon and the Kuiper Belt.

Mars Reconnaissance Orbiter

As the long-lived robotic rover Opportunity begins to explore the area ringing the massive Victoria crater on Mars, the Mars Reconnaissance Orbiter will help guide the rover's exploration of Victoria.

Spacecraft Milestones, Technical Issue