Atom & Cosmos | Science News

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Atom & Cosmos

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illustration of SEXTANT

SPACE PLACE  NASA’s SEXTANT experiment demonstrated a stellar version of GPS, finding the experiment’s location with an apparatus consisting of 52 X-ray telescopes (illustrated) on the International Space Station.

dead stars illustration

TRIPLE THREAT  A threesome of dead stars has allowed a new test of a tenet of Einstein’s theory of gravity. The trio includes a pulsar (illustrated, with bands of electromagnetic radiation in blue) in orbit with a nearby white dwarf. A second white dwarf orbits farther afield (red, upper right).

night sky panorama

SKY GLOW  This panoramic view of the night sky from Meteor Crater in Arizona shows how light from Winslow, Phoenix and Flagstaff (left to right, starting at 90°) makes it harder to see the stars.   

Atom & Cosmos

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