
Monster Galaxies Lose Their Appetite With Age
Our universe is filled with
gobs of galaxies, bound
together by gravity into
larger families called
clusters. Lying at the heart
of most clusters is a
... > full story

When Galaxies Switch Off: Hubble's COSMOS Survey Solves 'Quenched' Galaxy Mystery
Some galaxies hit a point in
their lives when their star
formation is snuffed out,
and they become "quenched".
Quenched galaxies in the
... > full story

NASA Technologist Makes Traveling to Hard-to-Reach Destinations Easier
Traveling to remote
locations sometimes involves
navigating through
stop-and-go traffic,
traversing long stretches of
... > full story

New Explorer Mission Chooses the 'Just-Right' Orbit
Principal investigator
George Ricker likes to call
it the "Goldilocks orbit" --
it's not too close to Earth
and her Moon, and it's not
too far. In fact, it's just
... > full story
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Spitzer Discovers Young Stars With a 'Hula Hoop'
July 31, 2013 Astronomers using NASA's Spitzer Space Telescope have spotted a young stellar system that "blinks" every 93 days. Called YLW 16A, the system likely consists of three developing stars, two of which ... > full story -
NASA's Cassini Sees Forces Controlling Enceladus Jets
July 31, 2013 The intensity of the jets of water ice and organic particles that shoot out from Saturn's moon Enceladus depends on the moon's proximity to the ringed planet, according to data obtained by NASA's ... > full story -
Saturn's Mimas and Pandora: Two Moons Passing in the Night
July 31, 2013 The Saturn moons Mimas and Pandora remind us of how different they are when they appear together, as in this image taken by NASA's Cassini spacecraft. Pandora's small size means that it lacks ... > full story -
Station Astronauts Remotely Control Planetary Rover from Space
July 30, 2013 On June 17 and July 26, NASA tested the Surface Telerobotics exploration concept, in which an astronaut in an orbiting spacecraft remotely operates a robot on a planetary ... > full story -
NASA's Chandra Sees Eclipsing Planet in X-Rays for First Time
July 29, 2013 For the first time since exoplanets, or planets around stars other than the sun, were discovered almost 20 years ago, X-ray observations have detected an exoplanet passing in front of its parent ... > full story -
Hubble Eyes a Mysterious Old Spiral
July 26, 2013 A striking cosmic whirl is the center of galaxy NGC 524, as seen with the NASA/ESA Hubble Space Telescope. This galaxy is located in the constellation of Pisces, some 90 million light-years from ... > full story -
Centaurs: NASA's WISE Finds Mysterious Centaurs May Be Comets
July 25, 2013 The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of ... > full story -
NASA's IRIS Telescope Offers First Glimpse of Sun's Mysterious Atmosphere
July 25, 2013 The moment when a telescope first opens its doors represents the culmination of years of work and planning -- while simultaneously laying the groundwork for a wealth of research and answers yet to ... > full story -
Image of Sun-Approaching Comet ISON
July 25, 2013 In this Hubble composite image taken in April 2013, the sun-approaching Comet ISON floats against a seemingly infinite backdrop of numerous galaxies and a handful of foreground ... > full story -
NASA's Van Allen Probes Discover Particle Accelerator in the Heart of Earth’s Radiation Belts
July 25, 2013 Scientists have discovered a massive particle accelerator in the heart of one of the harshest regions of near-Earth space, a region of super-energetic, charged particles surrounding the globe called ... > full story
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