Science Source Feb 2010

A clock in space, meant to illustrate the concept of time running out on Earth.

A conceptual image of the earth mapped on the sun, intended to convey a sense of global warming.

"From the space station, we can see city lights when it's nighttime on the planet below," said Flight Engineer Don Pettit of Expedition Six. "Shining...

A 3-hour star trail photo taken in Ft. Davis, Texas.

An all night star trail photo taken in Gonic, NH, the night of March 30, 2007. When looking north, the stars seem to streak around the North Star, Pol...

An all night star trail photo taken in Rochester, NH, the night of March 31, 2007. Because of the Earth's rotation, when looking north all the stars s...

The Moon, Mars (bottom right), and Uranus (top center) together on the night of December 12, 1999.

The Big Dipper (Ursa Major) seems to hang over this country road shortly after sunset in September. A car's headlights streak by in this time-lapse ph...

Comet Hale-Bopp was one of the brightest comets of the 20th century. Its gas or 'ion' tail (blue) consists of ionized glowing gas blown away from the...

Comet Hale-Bopp was one of the brightest comets of the 20th century. Its gas or 'ion' tail (blue) consists of ionized glowing gas blown away from the...

Comet Hale-Bopp was one of the brightest comets of the 20th century. Its gas or 'ion' tail (blue) consists of ionized glowing gas blown away from the...

Comet Hale-Bopp was one of the brightest comets of the 20th century. Its gas or 'ion' tail (blue) consists of ionized glowing gas blown away from the...

Comet 17P Holmes photographed on the night of October 10, 2007. Even from the light-polluted skies of Rochester, New Hampshire, the comet was easily v...

Comet 17P Holmes photographed on the night of October 10, 2007. Even from the light-polluted skies of Rochester, New Hampshire, the comet was easily v...

The Big Dipper (Ursa Major) seems to hang over this country road shortly after sunset in September. A car's headlights streak by in this time-lapse ph...

A man looking at the Summer Milky Way from a deserted road far from city lights. Composite image.

A section of the International Space Station is featured in this image photographed by the STS-122 crew aboard space shuttle Atlantis while docked wit...

On this the final spacewalk for the STS-122 Atlantis crew, astronaut Rex Walheim holds onto a handrail and spreads his arms at the Columbus laboratory...

Newborn stars peek out from beneath their natal blanket of dust in this dynamic image of the Rho Ophiuchi dark cloud from NASA's Spitzer Space Telesco...

Swirls of gas and dust reside in this ethereal-looking region of star formation seen by NASA's Hubble Space Telescope. This majestic view, located in...

The U.S. Air Force Thunderbirds fly past Launch Pad 39A at NASA's Kennedy Space Center in commemoration of NASA's 50th anniversary. The aircraft had f...

A mock-up of the Orion space capsule heads to its temporary home in a hangar at NASA's Langley Research Center in Hampton, VA. In late 2008, the full-...

As spring dawns on the Northern Hemisphere of Mars, sand dunes near the pole, as pictured above, begin to thaw. The carbon dioxide and water ice actua...

Trailing columns of fire, space shuttle Endeavour hurtles into the night sky, on the STS-123 mission, which lifted off was on 2:28 a.m. EDT, March 11,...

A close-up view of the exterior of space shuttle Endeavour's crew cabin, starboard wing and payload bay door was provided by the station's Expedition...

Expedition 16 flight engineer Garrett Reisman participated in the STS-123 mission's first scheduled spacewalk as construction and maintenance continue...

Anchored to a Canadarm2 mobile foot restraint, astronaut Rick Linnehan participates in the mission's first scheduled spacewalk. During the seven-hour...

Visible through a window on Endeavour's aft flight deck, astronaut Rick Linnehan participates in the mission's third scheduled spacewalk. During the 6...

STS-123 mission specialist Mike Foreman helps to tie down the Orbiter Boom Sensor System on the International Space Station's S1 truss during the miss...

Framed by components of the International Space Station, a full moon is visible in this view above Earth's horizon and airglow. This image was taken d...

Astronaut Robert L. Behnken used a digital camera to take this self-portrait during a spacewalk. Also visible in the visor's reflections are component...

This Chandra X-ray Observatory image shows the debris of a massive star explosion in the Large Magellanic Cloud, a small galaxy about 160,000 light ye...

Seasonal changes in south polar dune field on Mars. In this HiRISE image the distribution of dark streaks are not chaotic and their shapes are not fan...

This image shows streamlined features in the northwest Tharsis region of Mars. The trough running diagonally to the left near the bottom of the image...

This observation shows lightly cratered plains in Elysium Planitia, which is a low-lying area located in the equatorial region of Mars. Part of an ext...

Avalanches occurring on North Polar Scarps, Mars. Material, likely including fine-grained ice and dust and possibly including large blocks, has detach...

Antennae Galaxies. Hubble Space Telescope image of the Antennae Galaxies NGC 4038 and NGC 4039, a pair of colliding spiral galaxies. They are found in...

An Atlas vehicle is shown as it is raised into its launch gantry. This Atlas attempted to launch a Mercury spacecraft (without any astronauts aboard)...

The third Saturn V launch vehicle (SA-503) for the Apollo 8 mission lifted off from Launch Complex 39A at the Kennedy Space Center on December 21, 196...

Panoramic showing Apollo 11 landing area, the American flag, and commander Neil Armstrong working near lunar module. First manned mission to the moon.

First Apollo 11 EVA (extravehicular activity) picture. Jettison bag under the Descent Stage, south footpad. Taken by Apollo 11 Astronaut Neil Armstron...

Apollo 11 astronaut Buzz Aldrin deploying the Solar Wind Collector on the moon.

Apollo 11 astronaut Buzz Aldrin's footprint.

Apollo 11 astronaut Buzz Aldrin setting up seismographic equipment. First manned mission to moon.

Astronaut Edwin "Buzz" Aldrin descending down steps to moon's surface. First manned mission to the moon, Apollo 11.

The first Hermes A-1 test rocket was fired at White Sand Proving Ground (WSPG). Hermes was a modified V-2 German rocket, utilizing the German aerodyna...

Launch of Freedom 7, the first American manned suborbital space flight. With Astronaut Alan Shepard aboard, the Mercury-Redstone (MR-3) rocket is laun...

Astronaut Charles "Pete" Conrad Jr. looks out of the helicopter window after recovery from his spacecraft after the Gemini 5 splashdown.

President Richard M. Nixon was in the central Pacific recovery area to welcome the Apollo 11 astronauts aboard the U.S.S. Hornet, prime recovery ship...

The City of Chicago welcomes the three Apollo 11 astronauts, Neil A. Armstrong, Michael Collins, and Buzz Aldrin, Jr. 08/13/1969