Image of the DayResembling a swirling witch's cauldron of glowing vapors, the black hole-powered core of the Circinus Galaxy lies 13 million light-years...Marshall Space Flight Center scientist Ed West assembles the optical system of the Solar Ultraviolet Magnetograph Investigation (SUMI) telescope. SUMI...Food, fuel and shelter: vegetation is one of the most important requirements for human populations around the world. Satellites monitor...I Zwicky 18's youthful appearance, resembling that of galaxies typically found only in the early universe, belies its true age....Probing a glowing bubble of gas and dust encircling a dying star, NASA's Hubble Space Telescope reveals a wealth of...A bearded Walter Schirra, Apollo 7 commander, gazes out the rendezvous window in front of the commander's station on the...This Mars Exploration Rover Opportunity Pancam "super resolution" mosaic of the approximately 6 meter (20 foot) high cliff face of...Space shuttle Endeavour's drag chute unfurls in a kaleidoscope of color as the orbiter landed in darkness on Runway 15...Astronaut Robert L. Behnken used a digital camera to take this self-protrait during a spacewalk. Also visible in the visor's...In the 16th night landing at NASA's Kennedy Space Center, space shuttle Endeavour touches down on Runway 15 to end...Framed by components of the International Space Station, a full moon is visible in this view above Earth's horizon and...STS-123 mission specialist Mike Foreman helps to tie down the Orbiter Boom Sensor System on the International Space Station's S1...The Space Shuttle Endeavour lights up the early morning sky at NASA's Kennedy Space Center in Florida, lifting off at...NASA's Hubble Space Telescope took this close-up of the red planet Mars when it was just 34,648,840 miles (55,760,220 km)...A mother osprey (left) sits protectively next to one of her chicks in a nest situated atop a pole at...Trailing smoke and fire, Space Shuttle Atlantis roars into the sky past the U.S. flag on its journey to the...On December 17, 1903, two brothers from Dayton, Ohio, named Wilbur and Orville Wright, were successful in flying an airplane...A flash of blue and green lit the waters off Namibia in early November 2007 as a phytoplankton bloom grew...The dust sculptures of the Eagle Nebula are evaporating. As powerful starlight whittles away these cool cosmic mountains, the statuesque...As seen from the side not illuminated by the sun, Saturn's thinner rings are highlighted in shades of brown and...Photographers crowd around the countdown clock to capture the successful launch of Space Shuttle Atlantis from Launch Pad 39A. The...These images were taken by the Spitzer Wide-area Infrared Extragalactic Legacy project, which encapsulates one of the primary objectives of...QuikSCAT observed a rare tropical cyclone in the northern part of the Arabian Sea, threatening the petroleum shipping lanes and...Flying over the unlit side of Saturn's rings, the Cassini spacecraft captures the planet's glow, represented in brilliant shades of...Dusty grains - including tiny specks of the minerals found in peridot, sapphires and rubies - can be seen blowing...M51, whose name comes from being the 51st entry in Charles Messier's catalog, is considered to be a classic example...Neptune in Visible Light (Left) This natural-color views shows Neptune in visible light with three of its moons.This artist's conception shows binary-star system HD 113766, where astronomers suspect a rocky Earth-like planet is forming around one of...This image from NASA's Spitzer Space Telescope shows infant stars "hatching" in the head of the hunter constellation, Orion. Astronomers...Scroll right to see a breathtaking panorama of Mars from the top of Husband Hill. The image was taken by...The space shuttle Atlantis is seen on pad 39A as the sun sets, Friday, Dec. 7, 2007, at NASA's Kennedy...Since the first crew arrived on Nov. 2, 2000, the International Space Station has grown and evolved into a state-of-the-art...The Pistol Nebula, one of the intrinsically brightest stars in our galaxy, appears as the bright white dot in the...This false-color image of Saturn's main rings was made by combining data from multiple star occultations using Cassini's ultraviolet imaging...In the famous Pleiades star cluster, a star's light slowly destroys a passing cloud of gas and dust. The star,...Soft hues, partially lit orbs, a thin trace of the ring and slight shadows highlight this understated view of the...The Cassini spacecraft surveys Saturn's outstretched ring system in the infrared from a vantage point high above the planet's northern...The first recorded eruption of Mount Belinda Volcano, on Montagu Island in the remote South Sandwich Islands, began in October...A massive cluster of yellowish galaxies is seemingly caught in a spider web of distorted background galaxies in the left-hand...How do we know that dark matter isn't just normal matter exhibiting strange gravity? A new observation of gravitationally magnified...