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RXTE Satellite Decodes the Rhythm of an Unusual Black Hole

08.18.2014
Astronomers have uncovered rhythmic pulsations from a rare type of black hole 12 million light-years away by sifting through archival data from NASA's Rossi X-ray Timing Explorer (RXTE) satellite.

Hubble Stirs Up Galactic Soup

08.15.2014
This new NASA/ESA Hubble Space Telescope image shows a whole host of colorful and differently shaped galaxies.

Hubble Revisits a Globular Cluster’s Age

08.13.2014
Globular clusters are big balls of old stars that orbit around their host galaxy. It has long been believed that all the stars within a globular cluster form at the about same time.

James Webb Space Telescope "Pathfinder" Backplane's Path to NASA

08.12.2014
The “central backbone” of NASA's James Webb Space Telescope practice-model recently took a cross-country trip to be part of a simulation of putting together vital parts of the telescope.

NASA's NuSTAR Sees Rare Blurring of Black Hole Light

08.12.2014
NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has captured an extreme and rare event in the regions immediately surrounding a supermassive black hole.

NASA’s Hubble Finds Supernova Star System Linked to Potential “Zombie Star”

08.06.2014
Using NASA’s Hubble Space Telescope, a team of astronomers has spotted a star system that could have left behind a “zombie star” after an unusually weak supernova explosion.

Hubble Eyes Galaxy as it Gets a Cosmic Hair Ruffling

08.01.2014
From objects as small as Newton's apple to those as large as a galaxy, no physical body is free from the stern bonds of gravity, as evidenced in this stunning picture captured by Hubble.

NuSTAR Celebrates Two Years of Science in Space

07.31.2014
NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, a premier black-hole hunter among other talents, has finished up its two-year prime mission, and will be moving onto its next phase.

NASA's Fermi Space Telescope Reveals New Source of Gamma Rays

07.31.2014
Observations by NASA's Fermi Gamma-ray Space Telescope of several stellar eruptions, called novae, firmly establish these relatively common outbursts almost always produce gamma rays.

Hubble Shows Farthest Lensing Galaxy Yields Clues to Early Universe

07.31.2014
Astronomers using NASA's Hubble Space Telescope have unexpectedly discovered the most distant galaxy that acts as a cosmic magnifying glass.

Revolutionary Microshutter Technology Hurdles Significant Challenges

07.29.2014
The team, led by Principal Investigator Harvey Moseley, has demonstrated that electrostatically actuated microshutter arrays are as functional as the current technology’s magnetically activated

NASA-funded X-ray Instrument Settles Interstellar Debate

07.28.2014
New findings from a NASA-funded instrument have resolved a decades-old puzzle about a fog of low-energy X-rays observed over the entire sky.

Measuring Gravitational Waves with eLISA

07.28.2014
Puffs of smoke waft from a circuit board as interns solder tiny circuits for the Evolved Laser Interferometer Space Antenna.

Amber Straughn - Drawn to the Skies

07.25.2014
Initially drawn to the sky through the stars, astrophysicist Amber Straughn now flies through it as a private pilot.

Hubble Serves a Slice of Stars

07.25.2014
The thin, glowing streak slicing across this image cuts a lonely figure, with only a few foreground stars and galaxies in the distant background for company.

NASA's Webb Sunshield Stacks Up to Test!

07.24.2014
The Sunshield on NASA's James Webb Space Telescope is the largest part of the observatory—five layers of thin membrane that must unfurl reliably in space to precise tolerances.

Hubble Finds Three Surprisingly Dry Exoplanets

07.24.2014
Astronomers using NASA's Hubble Space Telescope have gone looking for water vapor in the atmospheres of three planets orbiting stars similar to the sun -- and have come up nearly dry.

Discover the "X-Factor" of NASA's Webb Telescope in "Behind the Webb" Video

07.24.2014
NASA's James Webb Space Telescope and Chandra X-ray observatory have something in common: a huge test chamber used to simulate the hazards of space and the distant glow of starlight.

NASA Team Lays Plans to Observe New Worlds

07.23.2014
It can take decades to mature an astrophysics flagship mission from concept to launch pad. Given the long lead times, it’s time to lay plans for a future flagship mission.

NASA's Fermi Finds A 'Transformer' Pulsar

07.22.2014
In late June 2013, an exceptional binary containing a rapidly spinning neutron star underwent a dramatic change in behavior never before observed.

Hubble Sees the Oldest Cluster in Milky Way Neighbor

07.18.2014
This image shows NGC 121, a globular cluster in the constellation of Tucana (The Toucan). Globular clusters are big balls of old stars that orbit the centers of their galaxies like satellites.

Hubble Sees a Galaxy With a Glowing Heart

07.11.2014
This view, captured by the NASA/ESA Hubble Space Telescope, shows a nearby spiral galaxy known as NGC 1433.

Hubble Spots Spiral Bridge of Young Stars Linking Two Ancient Galaxies

07.10.2014
NASA's Hubble Space Telescope has photographed an unusual structure 100,000 light years long, which resembles a corkscrew-shaped string of pearls and winds around the cores of two colliding galaxies.

Astronomers Bring The Third Dimension To A Doomed Star's Outburst

07.08.2014
In the middle of the 19th century, the massive binary system Eta Carinae underwent an eruption that ejected at least 10 times the sun's mass and made it the second-brightest star in the sky.

Testing Completed on NASA's James Webb Space Telescope Backplane

07.08.2014
The James Webb Space Telescope has reached another development milestone with the completion of static load testing of its primary mirror backplane support structure.

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