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2000

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  • L-bursts

    May 23, 2000

  • The Extraordinary Geomagnetic Perseid Meteor Shower

    Aug. 14, 2000

    An interplanetary shock wave from the Sun struck Earth's magnetosphere just before the peak of the Perseid meteor shower on August 12, 2000, triggering a powerful geomagnetic storm. Stargazers across Canada and the United States were treated to the rare spectacle of a meteor shower seen against the backdrop of colorful Northern Lights.

  • Surf's Up on Europa?

    Jan. 10, 2000

    Changes in Europa's magnetic field, detected during last week's flyby, point to a salty, subterranean ocean.

  • Perseid Dawn

    Aug. 8, 2000

    The Perseid meteor shower peaks on August 12, 2000. This year the bright, nearly-full Moon will outshine the Perseids most of the night, but for an hour between moonset and sunrise on Saturday morning, star gazers could witness a brief but beautiful meteor shower.

  • Black Hole Hide and Seek

    March 21, 2000

    Scientists using NASA's Chandra X-ray Observatoryhave found new evidence for Black Holeshiding inside the cores of normal-looking galaxies. The results strengthen the "unified model of quasars," which predicts that active galaxies look different depending on your point of view.

  • Solar Smoke Rings

    Feb. 3, 2000

    The Sun put on a dynamic show this week with a series of swirling coronal mass ejections.

  • Planets in a Test Tube

    March 6, 2000

    What do the racing winds on Jupiterand the snail's pace circulation of molten rock inside the Earth have in common? They're all fluids whose movements were simulated in a "planet in a test tube" flown aboard the Space Shuttlein 1985 and 1995. Results from the Geophysical Fluid Flow Cell experiments were published last month in a NASA Technical Memorandum.

  • Sample QPO from XTE J1550-564

    May 15, 2000

  • Advanced Space Propulsion Workshop

    May 31, 2000

    Scientists and engineers are gathering in Pasadena today to discuss cutting-edge research in Space Transportationat a workshop sponsored by the NASA Marshall Space Flight Center and the Jet Propulsion Laboratory.

  • Square Craters

    Sept. 26, 2000

    NASA's NEAR Shoemaker spacecraft has spotted square-shaped craters on asteroid Eros, a telltale sign of mysterious goings-on in the asteroid belt long ago. Square craters add to accumulating evidence that the Eros is riddled with cracks and ridges that extend the entire 33 km length of the peanut-shaped space rock.