News
- Materials Science
Impurity clouds from all sides now
For the first time, scientists have obtained detailed, three-dimensional images of line defects in steel.
- Physics
Matter waves: Be fruitful and multiply
For the first time, physicists induced atoms to amplify a selected matter wave in a manner analogous to a cascade of photons amplifying the characteristic electromagnetic wave of an optical laser.
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The Last Three Minutes
Computing the shape of gravitational waves to come
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Astronomy
Observations of remnants of supernova 1987A by camera and spectrograph have furnished new clues to the life of a star whose catastrophic explosion astronomers witnessed four years ago.
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Astronomy
A sprinkling of distant star clusters, throwing tantrums in stellar nurseries, polar winds and excretion disks, new echoes of supernova 1987A, and low-budget stellar spectroscopy.
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Astronomy
Ringing up another light echo, and the Milky Way's third population.
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Astronomy
Missing by more than a mile, life at the end of the line, and a supernova test of special relativity.
