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NASA Phoenix Mission Set for Mars Landing on May 25

NASA's Phoenix Mars Lander is set to end its long journey and begin a three-month mission to sniff and taste fistfuls of Martian soil and buried ice. The challenging landing on the Red Planet is set for the evening of May 25. › Visit Phoenix Section

Photo Gallery: Discovery Prepares for Flight on STS-124 Mission

See behind the scenes photos of the shuttle, astronauts and the Japanese Kibo module during preparations for launch at NASA's Kennedy Space Center in Florida. › View Photo Gallery and Share Comments

TDRS: 25 Years of Connecting Space To Earth

In 1983, NASA launched a new era in space communications with the first Tracking and Data Relay Satellite, significantly increasing the time mission operators on Earth could contact astronauts and robotic spacecraft. › Read More and Comment

Image of the Day Gallery

Discovery Descending

In high bay 3 of the Vehicle Assembly Building at Kennedy Space Center, a crane lowers space shuttle Discovery toward the external tank and solid rocket boosters already stacked on the mobile launcher platform. The stacking and mating took place in...

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Interactive Features

STS-124: Interactive Mission Timeline

Discovery and crew deliver the main segment of Japan's Kibo module to the International Space Station.
STS-124 Image Gallery

View preflight, launch and landing photos of space shuttle Discovery and the STS-124 crew at Kennedy Space Center.
Alan Shepard: First American in Space

Alan Shepard rode his Freedom 7 capsule into history on May 5, 1961.