NASA - National Aeronautics and Space Administration

Sky Spy Safari

A stroll through the cosmos

Astronaut Flight Lounge

What makes NASA's space explorers tick? Find out in the Astronaut Flight Lounge

Scenes From Launch Control

First Lady Laura Bush and NASA Administrator Mike Griffin watch the launch of Discovery.

Return to Flight

Meet the STS-114 crew and explore the Shuttle System.

2004 Year in Review

A new Vision. Twin rovers on Mars. A close encounter with Saturn. The next generation of astronauts. It all happened in 2004

Explorers Among US

Explorers of Denali

2003 Portal Welcome Introduction

Welcome to NASA.gov

Flash Features

The Mission That Mapped the World

NASA's Shuttle Radar Topography Mission returned from its 11-day shuttle flight with a better map of the world.

Sci-Fi vs. Science Fact

How much do you know about space travel and the search for extraterrestrial life?

Photo Gallery: Expedition 10 Launch

An interactive feature of the Expedition 10 crew.

Cassini Photo Essay

View some of the breathtaking images of the ringed world of Saturn and its moons from the early stages of this exciting mission.

Apollo 11 at 35

Celebrating the past with a vision for the future.

2004 Astronaut Class

Meet the 11 new candidates.

Photo Gallery: Expedition 9 Takes Station Command

The Soyuz TMA-4 vehicle blasts off from the Baikonur Cosmodrome in Kazakhstan April 19, 2004.

HubbleSite  →

Cosmic Collision

Drive the Mars Rovers!

Take them out for a spin.

Remembering STS-107

An interactive tribute to the fallen heroes of Columbia

Roaming the Red Planet

M2K4 is a NASA interactive experience focusing on the latest mission to Mars.

MER Rover Spirit Interactive Photo

Explore the surface of Mars by dragging your mouse.