1. Astronomy

    Strange Stars? Odd features hint at novel matter

    Two stellar corpses thought to be made of neutrons may actually contain weird forms of matter never observed before.

  2. Astronomy

    Cosmic Remodeling: Superwinds star in early universe

    New measurements reveal that some of the earliest galaxies in the universe produced winds so powerful and persistent that they blew material from one galaxy to another, temporarily separating dark matter from visible matter and profoundly influencing the evolution of future generations of galaxies.

  3. Planetary Science

    Jupiter’s Whirlpool

    The surprising birth and rapid evolution of a giant vortex highlight the first movie of Jupiter’s polar regions seen in the ultraviolet. The movie and other Jupiter images from NASA’s Cassini spacecraft are available online at the Cassini imaging team and Jet Propulsion Laboratory Web sites. Go to: and

  4. Astronomy

    Gamma-Ray Burst: A black hole is born

    New evidence supports the notion that gamma-ray bursts, the most violent explosions in the universe, are the primal calling cards of newborn black holes.

  5. Astronomy

    Galaxy Hunter

    At the interactive “Galaxy Hunter” Web site, students use data from the Hubble Space Telescope to investigate a bewildering assortment of deep-space galaxies in various stages of evolution–and learn statistical concepts such as sample variability and size along the way. Go to:

  6. Astronomy

    Long Ago and Far Away: Astronomers find distant galaxy, early cluster

    Peering ever deeper into space and further back in time, two teams of astronomers have uncovered new details about the earliest galaxies and galaxy clusters in the universe.

  7. Astronomy

    Repainting the cosmic palette

    After all the hue and cry about the color of the universe, astronomers have now revised their findings: It’s not pale green, but boring old beige.

  8. Planetary Science

    Mars Odyssey instrument revived

    Flight controllers have revived an instrument on the Mars Odyssey spacecraft that measures the amount of radiation bombarding the Martian surface.

  9. Astronomy

    Telescope Tuned Up: Back to work for orbiting observatory

    A rejuvenated Hubble Space Telescope floated away from the space shuttle Columbia on March 9 after astronauts spent a week renovating the observatory.

  10. Planetary Science

    Probing Jupiter’s big magnetic bubble

    Simultaneous measurements by two spacecraft have probed in greater detail than ever before Jupiter’s magnetosphere, the invisible bubble of charged particles that surrounds the giant planet.

  11. Astronomy

    Rethinking an Astronomical Icon

    Examining the Eagle nebula's pillars of creation with infrared detectors, scientists are viewing an astronomical icon in a whole new light.

  12. Planetary Science

    Odyssey’s First Look: Craft spies signs of ice at the Martian south pole

    Astronomers have for the first time found evidence of large amounts of frozen water in the subsurface of Mars.