So when we detect gamma-rays from space, we know they signal intensely hot, extreme events.

CNN: Why gamma-ray burst shocked scientists

Now, an international team of astronomers has trained the Fermi space-based gamma ray telescope on V407 Cygni, a "binary" system comprising a white dwarf star and a red giant companion, 9, 000 light-years away.

BBC: Gamma rays from nova explosion surprise astronomers

Many Americans recognize the unsurpassed science and inspiration that have come from the Hubble Space Telescope over the past two decades, as well as from its less famous sister satellites like the Chandra X-ray Observatory, the Spitzer Space (Infrared) Telescope and the Fermi gamma-ray observatory.

CNN: Space is still the new frontier

Early results from Schaefer's study of the movements of gamma-ray bursts suggest that dark energy is different far out in space, and therefore way back in time.

NPR: New Clue to Universe's Darkest Mystery

The work was reported in mid-October by Jay Norris, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, at the Fifth Huntsville (Alabama) Gamma-Ray Burst Symposium.

CNN: Gamma ray finding may open new window on universe