Ron Cowen

All Stories by Ron Cowen

  1. Planetary Science

    A comet’s tail

    Already under observation by astronomers, Hartley 2 will be visible in dark skies when it passes Earth on October 20.

  2. Space

    Life may have started sky high

    Simulations of the atmosphere on Saturn’s moon Titan suggest that basic chemical ingredients could have formed far above early Earth.

  3. Space

    It’s only a seltzer moon

    Plumes spewing from the south pole of Saturn’s Enceladus may have carbonated source, a new analysis suggests.

  4. Space

    Why Mars is a lightweight

    Two new models of the early solar system try to explain why the Red Planet failed to grow as large as Earth or Venus.

  5. Space

    First it’s there, then it’s knot

    Discovered just a year ago, a tangle of atoms at the edge of the solar system disappears before astrophysicists’ eyes, leaving questions behind.

  6. Space

    Glowing auroras ring Saturn

    A new movie documents changes in Saturn’s lights over nearly two days on the planet.

  7. Space

    Particles in cahoots

    Physicists have discovered curious connections in subatomic debris produced by the world’s largest particle collider.

  8. Space

    An uncomfortable silence

    WASHINGTON, D.C. — How can astronomers advise NASA on how to trim the costs of developing missions if no one will tell them how much the costliest mission of all, the James Webb Space Telescope, is running over budget? Successor to Hubble, the James Webb Space Telescope is now slated for launch in 2014. The […]

  9. Space

    Between the sheets

    The detection of layered minerals in a young star’s planet-forming region suggests an origin for Earth’s oceans.

  10. Space

    Asteroids miss with astronomers

    Close brushes with small objects like the ones that swept past Earth on Wednesday are actually fairly common.

  11. Space

    Mars shows signs of recent activity

    The surface of Mars had abundant liquid water as well as volcanic activity during the past 100 million years, a new study of the Martian atmosphere suggests.

  12. Astronomy

    Mars organics get new lease on life

    More than three decades after the Viking mission failed to find compounds necessary for carbon-based life, a new analysis suggests they could actually be present at detectable levels in the planet’s soil.