Peering deep into the vast stellar halo that envelops our Milky Way galaxy, astronomers using NASA’s Hubble Space Telescope have uncovered tantalizing evidence for the possible existence of a shell of stars that are a relic of cannibalism by our Milky Way.


This illustration shows the disk of our Milky Way galaxy, surrounded by a faint, extended halo of old …

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Pluto and Charon

Pluto may have been demoted, but its family is getting bigger and bigger. Now, two of the dwarf planet’s tiniest moons need names — but rather than leaving the Plutonian satellites’ naming ceremony to astronomers, that honor has fallen to you.


The Plutonian system detailing the orbits of Charon, Nix, Hydra, “P4″ and “P5.” Image credit: NASA

The discoverers of …

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Two of NASA’s Great Observatories, the Spitzer and Hubble space telescopes, have teamed up to uncover a mysterious infant star that behaves like a police strobe light.


NASA’s Spitzer and Hubble space telescopes have teamed up to uncover a mysterious infant star that behaves like a police strobe light. Image credit: NASA, ESA, J. Muzerolle (STScI), E. Furlan (NOAO and …

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Newly released Hubble Space Telescope images of a vast debris disk encircling the nearby star Fomalhaut, and of a mysterious planet circling it, may provide forensic evidence of a titanic planetary disruption in the system.


This false-color composite image, taken with the Hubble Space Telescope, reveals the orbital motion of the planet Fomalhaut b. Based on these observations, astronomers calculated …

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This artist’s conception illustrates the brown dwarf named 2MASSJ22282889-431026. NASA’s Hubble and Spitzer space telescopes observed the object to learn more about its turbulent atmosphere. Brown dwarfs are more massive and hotter than planets but lack the mass required to become sizzling stars. Their atmospheres can be similar to the giant planet Jupiter’s. Spitzer and Hubble simultaneously observed the object …

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NASA’s Hubble Space Telescope has been providing astounding images of the universe since April 1990 and has led to remarkable discoveries. NASA’s James Webb Space Telescope is the next-generation telescope that will peer even deeper into space and unveil even more mysteries. Both of these extraordinary telescopes are now the topics of two free e-books available from the Apple iBookstore.…

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NASA

In 2012, NASA continued to implement America’s ambitious space exploration program, landing the most sophisticated rover on the surface of Mars, carrying out the first-ever commercial mission to the International Space Station and advancing the systems needed to send humans deeper into space.

“NASA achieved historic milestones this year landing the most sophisticated rover on the surface of Mars, carrying …

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Hubble Space Telescope

Using NASA’s Hubble Space Telescope, astronomers announced Dec. 12 they have seen further back in time than ever before and have uncovered a previously unseen population of seven primitive galaxies that formed more than 13 billion years ago, when the universe was less than 3 percent of its present age. The deepest images to date from Hubble yield the first …

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NASA is exploring options for innovative and imaginative uses of two large space telescopes recently transferred to the agency. In a request for information (RFI) published Monday, NASA seeks information about system concepts and architectures that would take advantage of these assets to address NASA’s goals in astrophysics, heliophysics, planetary sciences, and human spaceflight.

“Because there are two telescopes, there …

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By combining the power of NASA’s Hubble and Spitzer space telescopes and one of nature’s own natural “zoom lenses” in space, astronomers have set a new record for finding the most distant galaxy seen in the universe.


In this image (click it for a larger view), astronomers use NASA’s Hubble Space Telescope and a cosmic zoom lens to uncover the …

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