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  • 27 Jul 1999

    Move over, Saturn. Uranus is now the planet with the largest number of moons. An international team of astronomers led by JJ Kavelaars of McMaster University in Hamilton, Ontario, say they have discovered two new satellites circling the planet, bringing the total to 20.

  • 21 Jul 1999

    Astronomers have devised a scale to rate the danger posed by asteroids headed for Earth, comparable to the Richter scale of earthquake fame.

  • 14 Jul 1999

    If the world comes to an end in 2044, it won't be because of asteroid 1999 AN10, a kilometer-wide rock that caused a media sensation earlier this year (ScienceNOW, 20 April 1999).

  • 24 Jun 1999

    Solar physicists have found an ingenious way to look at the far side of the sun. The discovery, announced in Paris on Tuesday at a meeting of astrophysicists, could lead to better forecasts of solar storms and other types of potentially destructive space weather.

  • 23 Jun 1999

    The night sky may look like a pristine black void, but it's littered with everything from paint flakes to burnt-out rocket stages--some 3000 metric tons of space junk.

  • 11 Jun 1999

    The United States and Europe have breathed life into plans to build a giant new astronomical observatory in Chile that could be fully operational in 2009.

  • 9 Jun 1999

    The moon already had a face; now it also has a tail. Astronomers from Boston University's Center for Space Physics discovered the faint orange wisp of neutral sodium atoms, perhaps over half a million kilometers long, during the Leonid meteor shower last November.

  • 20 May 1999

    What is 370,967 data bits long, might be read by aliens, and contains two typos? It's an interstellar radio message, slated to be beamed to the stars Monday by a radio dish in Ukraine.

  • 19 May 1999

    An astronomer has discovered a small moon of the planet Uranus that was captured on photos by the probe Voyager 2 (see below) but overlooked for more than 13 years. The find raises the number of known uranian satellites to 18, and there may even be more.

  • 14 May 1999

    The Very Large Telescope (VLT) in Chile, the world's most powerful telescope, has bagged its first gamma ray burst, less than 6 weeks after the start of its regular observations.