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Solar System Topics

  • Chandra image shows a powerful connection in the Crab Nebula

    1999April 6, 2011

    Another fabulous discovery from Chandra X-ray Observatoryshows a bright ring of fire around the pulsar at the heart of the Crab Nebula. Scientists believe this is a link between the Crab's powerhouse and its light show.

  • What next, Leonids?

    1999April 6, 2011

    The Leonids of 1999 provided skywatchers in Europe and the Middle East with a tremendous show of over 1500 Meteorsper hour at the peak. What lies in store for stargazers next year and in the early 21st century? Read what the experts say!

  • Peering through a Hole in the Sky

    1999April 6, 2011

    A team of NASA/Marshall scientists plan to investigate an unlikely 50-year old mystery during the August 11, 1999 total solar eclipse.

  • Why Wait for the 4th of July?

    1999April 6, 2011

    With the discovery of a bright optical flash during a gamma-ray burst in January 1999, and the advancement of observing technologies, it is now possible that amateur astronomers can make meaningful scientific contributions to the study of these enigmatic events. Find out how you can help in the quest to understand these distant objects, from the confines of your own back yard.

  • HERO will provide new view of X-ray universe

    1999April 6, 2011

    A new method for making high-energy x-ray optics may open the door for a new era of astrophysical observations.

  • Audio Eclipse May Fill the Sky

    1999April 6, 2011

    As the eclipse turns day into night over Europe on August 11, radio transmissions from near the path of totality may spread across the globe, due to ionospheric changes caused by the Moon's shadow. As a result, ham radio operators around the world can track the August 11, 1999 total solar eclipse by monitoring changes in atmospheric radio propagation.

  • The Great Meteor Storm of 1833

    1999April 6, 2011

    Read a charming, first-hand account of the meteor shower that marked the discovery of the Leonids and created a new branch of astronomy.

  • NASA Meteor Balloon Rises Again

    1999April 6, 2011

    NASA scientists and ham radio amateurs are teaming up for a weather balloon flight to the stratosphere during the Leonid meteor shower on November 18, 1999. The balloon will transmit a live webcast of the shower from an altitude of 100,000 ft or more, far above any bad weather or obscuring clouds.

  • Planetary Power Breakfast

    1999April 6, 2011

    With the advent of northern autumn, the dark morning sky is a sparkling showcase of bright planets and stars. Early October offers a special treat featuring the slender crescent Moon, brilliant Venus and blue-white Regulus.

  • Braking glitch may point to massive starquake

    1999April 6, 2011

    Scientists believe a sudden slowdown of a spinning neutron star is due to a massive starquake and a huge release of gamma-ray energy.