Browse Archive

  • Two New Missions Scheduled

    The Aeronomy of Ice in the Mesosphere Small Explorer will determine the causes of Earth's highest-altitude clouds.

  • Explorer Mission Proposals Selected

    Proposals for feasibility studies will look at the universe -- from Jupiter and the sun to black holes and dark matter.

  • image of wispy clouds

    Strange Clouds  →

    Astronauts onboard the International Space Station have been observing electric blue noctilucent (or night shining) clouds from Earth-orbit.