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Astrophysics Topics

  • A Richter Scale for Cosmic Collisions

    1999April 6, 2011

    Planetary scientists have developed the Torino Scale, a new means of conveying the risks associated with Asteroidsand Cometsthat might collide with the Earth.

  • Is the 2-in-1 burster a masquerade?

    1999Sept. 20, 2011

    A NASA scientist finds a peculiar rapidly rotating neutron star - a pulsar - is acting quite a bit differently than it did in 1995, and is trying to understand why.

  • Earth microbes on the moon

    1998April 6, 2011

    Three decades after Apollo 12, a remarkable colony of lunar survivors, who hitchhiked a trip to The Moonon Surveyor 3 - unprotected - are reexamined.

  • Giant convective cells found on Sun after 30-year search

    1998April 6, 2011

    After 30 years of searching, NASA and Stanford scientists find giant convection cells on the Sun - opening a new avenue for understanding the Sun and space weather.

  • Watching the moon's shadow

    1998April 6, 2011

    While most eyes turn skyward to watch Thursday's solar eclipse (with the appropriate filters to protect your eyes) one satellite will look earthward to watch the moon's shadow race across the globe.

  • Getting a solid view of the Sun's corona-

    1998April 6, 2011

    Seeing the Sun in stereo: Scientists propose using dual spacecraft to get 3-D images of magnetic structures in the Sun's corona.

  • Astronomyconference devotes session to Gamma-ray Bursts

    1998April 6, 2011

    Discovery of visible stars and afterglows where cosmic gamma-ray explosions were detected are leading to new findings.

  • Blasts From the Past

    1998April 6, 2011

    A cosmic explosion of gamma-rays from near the edge of the known universe - announced today by NASA - is only the latest piece in 30-year scientific puzzle. Explore the trail of discovery that has led scientists to learn that these daily events each release more energy in 10 seconds than the Sun will emit in its entire 10-billion year lifetime.

  • Gamma-ray Bursters cross the 'Line of Death'

    1998Sept. 20, 2011

    A study of gamma ray burst spectra shows one more thing that these mysterious, cosmological gamma ray bursts are not.

  • The frosty plains of Europa

    1998April 6, 2011

    As Galileo returns new images of Europa, NASA scientists prepare to study samples from a potentially similar environment here on Earth.