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Hubble Sees Galaxies Spiraling around Leo

04.18.2014
Shown here is a spiral galaxy known as NGC 3455, which lies some 65 million light-years away from us in the constellation of Leo (the Lion).

NASA's Hubble Extends Stellar Tape Measure 10 Times Farther Into Space

04.10.2014
Using NASA's Hubble Space Telescope, astronomers now can precisely measure the distance of stars up to 10,000 light-years away -- 10 times farther than previously possible.

Webb Telescope's Heart Complete, Final Instrument Installed

04.08.2014
The last piece of the James Webb Space Telescope's heart was installed inside the world's largest clean room at NASA's Goddard Space Flight Center.

Fermi Data Tantalize With New Clues To Dark Matter

04.03.2014
A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that some of this emission may arise from dark matter.

NASA Hubble Team Finds Monster "El Gordo" Galaxy Cluster Bigger Than Thought

04.03.2014
NASA's Hubble Space Telescope has weighed the largest known galaxy cluster in the distant universe, catalogued as ACT-CL J0102-4915, and found it definitely lives up to its nickname -- El Gordo.

NASA's Hubble Space Telescope Spots Mars-Bound Comet Sprout Multiple Jets

03.27.2014
NASA released an image of a comet that, on Oct. 19, will pass within 84,000 miles of Mars -- less than half the distance between Earth and our moon.

Hubble Celebrates 24th Anniversary with Infrared Image of Nearby Star Factory

03.17.2014
In celebration of the 24th anniversary of the launch of NASA's Hubble Space Telescope, astronomers have captured infrared-light images of a churning region of star birth 6,400 light-years away.

Nearby Star's Icy Debris Suggests 'Shepherd' Planet

03.06.2014
A team of astronomers exploring the disk of gas and dust around a nearby star have uncovered a cloud of poisonous gas formed by ongoing rapid-fire collisions among a swarm of icy, comet-like bodies.
Video: Colliding Comets Hint at Unseen Exoplanet

NASA's Hubble Telescope Witnesses Asteroid's Mysterious Disintegration

03.06.2014
NASA's Hubble Space Telescope has recorded the never-before-seen break-up of an asteroid into as many as 10 smaller pieces.

With A Deadly Embrace, 'Spidery' Pulsars Consume Their Mates

02.20.2014
Learn how astronomers discovered PSR J1311-3430, a record-breaking black widow binary and the first of its kind discovered solely through gamma-ray observations.

RXTE Reveals the Cloudy Cores of Active Galaxies

02.19.2014
Using data from the RXTE satellite, an international team has uncovered a dozen instances where X-ray signals from active galaxies dimmed as a result of a cloud of gas moving across our line of sight.

NASA's NuSTAR Untangles Mystery of How Stars Explode

02.19.2014
One of the biggest mysteries in astronomy, how stars blow up in supernova explosions, finally is being unraveled with the help of NASA's Nuclear Spectroscopic Telescope Array (NuSTAR).
(More information about NuSTAR)

Hubble Watches Stars' Clockwork Motion In Nearby Galaxy

02.18.2014
Using the sharp-eyed NASA Hubble Space Telescope, astronomers have for the first time precisely measured the rotation rate of a galaxy based on the clock-like movement of its stars.

NASA Administrator Bolden, Senator Mikulski View Progress on James Webb Space Telescope

02.03.2014
NASA Administrator Charles Bolden and Senator Barbara Mikulski of MD congratulated the James Webb Space Telescope team for the delivery of all flight instruments and primary mirrors to NASA's GSFC.

NASA-Sponsored 'Disk Detective' Lets Public Search for New Planetary Nurseries

01.30.2014
NASA is inviting the public to help astronomers discover embryonic planetary systems hidden among data from the agency's Wide-field Infrared Survey Explorer (WISE) mission.
Disk Detective Website

Hubble Helps Solve Mystery of Ultra-Compact, Burned-Out Galaxies

01.29.2014
Astronomers have pieced together the evolutionary sequence of compact elliptical galaxies that erupted and burned out early in the history of the universe.

NASA Spacecraft Take Aim At Nearby Supernova

01.24.2014
An exceptionally close stellar explosion discovered on Jan. 21 has become the focus of observatories around and above the globe, including several NASA spacecraft.

James Webb Space Telescope Passes a Mission Milestone

01.24.2014
James Webb Space Telescope has passed its first significant mission milestone for 2014 -- a Spacecraft Critical Design Review.

Dead Star and Distant Black Holes Dazzle in X-Rays

01.09.2014
Two new views from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope's talent for spying objects near and far.

Swift Catches X-ray Action at Milky Way's Center

01.08.2014
Recent observations by the Swift spacecraft have led to the discovery of a rare celestial entity that may help scientists test predictions of Albert Einstein's theory of general relativity.

Hubble Images Become Tactile 3-D Experience for the Blind

01.07.2014
Astronomers Carol Christian and Antonella Nota are experimenting with 3-D printers to transform astronomy education by turning images from HST into tactile 3-D pictures for the blind.

AAS Meeting Highlights Several New Hubble Science Findings

01.07.2014
Highlighted are three discoveries: 4 unusually bright galaxies, the deepest image of a galaxy cluster, and a sampling of galaxies thought to be responsible for most of the stars we see today.

NASA's Fermi Makes First Gamma-ray Study of a Gravitational Lens

01.06.2014
An international team of astronomers, using NASA's Fermi observatory, has made the first-ever gamma-ray measurements of a gravitational lens.

NASA's Hubble Sees Cloudy Super-Worlds With Chance for More Clouds

12.31.2013
Scientists using NASA's Hubble Space Telescope have characterized the atmospheres of two of the most common type of planets in the Milky Way galaxy and found both may be blanketed with clouds.

Cosmic Particle Accelerators Identified

12.20.2013
Runner-up for Breakthrough of the Year - Astronomers traced high-energy particles called cosmic rays back to their birthplaces in the debris clouds of supernovae.

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