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Hubble Solves Mystery on Source of Supernova in Nearby Galaxy
The decades-long search for Type Ia supernovae progenitors has taken on special importance due to their use in measuring the acceleration of the universe.
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NASA Discovers New Double-Star Planet Systems
The discovery of the Kepler-34 and Kepler-35 systems establishes that double-star worlds are not uncommon.
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NASA's Kepler Mission Finds Three Smallest Exoplanets
Astronomers using data from NASA's Kepler mission have discovered the three smallest planets yet detected orbiting a star beyond our sun.
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NASA's Hubble Breaks New Ground with Distant Supernova Discovery
Three images taken by NASA's Hubble Space Telescope reveal the emergence of an exploding star, called a supernova.
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Hubble Zooms in on Double Nucleus in Andromeda Galaxy
A new Hubble Space Telescope image centers on the 100-million-solar-mass black hole at the hub of the neighboring spiral Andromeda galaxy, the only galaxy outside the Milky Way visible to the naked eye.
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Hubble Finds Rare Ultra-Blue Stars
Peering deep inside the hub of the neighboring Andromeda galaxy, Hubble has uncovered a large, rare population of hot, bright stars.
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Stars Pop Onto the Scene in New WISE Image
A new, large mosaic from NASA's Wide-Field Infrared Survey Explorer (WISE) showcases a vast stretch of cosmic clouds bubbling with new star birth.
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Before They Were Stars: New Image Shows Space Nursery
The stars we see today weren't always as serene as they appear, floating alone in the dark of night.
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RXTE Helps Pinpoint Black Hole's 'Bullets'
An international team of astronomers has identified the moment when a black hole in our galaxy launched super-fast knots of gas into space.
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Hubble Pinpoints Farthest Protocluster of Galaxies Ever Seen
NASA's Hubble Space Telescope has uncovered the most distant grouping of a cluster of galaxies in the initial stages of development ever observed in the early universe.