Farthest Individual Star Ever Seen

Farthest Individual Star Ever Seen

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More than halfway across the universe, an enormous blue star nicknamed Icarus is the farthest individual star ever seen. Normally, it would be much too faint to view, even with the world’s largest telescopes. Through a quirk of nature that tremendously amplifies the star’s feeble glow, however, astronomers using NASA’s Hubble Space Telescope were able to pinpoint this faraway star. They also used Icarus to test a theory of dark matter, and to probe the makeup of a foreground galaxy cluster.

Optical Microscope New Calibration Process

Optical Microscope New Calibration Process

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Over the last two decades, scientists have discovered that the optical microscope can be used to detect, track and image objects much smaller than their traditional limit—about half the wavelength of visible light, or a few hundred nanometers. That pioneering research, which won the 2014 Nobel Prize in Chemistry, has enabled researchers to track proteins in fertilized eggs, visualize how molecules form electrical connections between nerve cells in the brain, and study the nanoscale motion of miniature motors.