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Citizen Scientist Topics

  • Morning Coffee and Planets

    2001Sept. 20, 2011

    Beginning Friday the 13th -- a lucky day for stargazers -- four planets, the Moon, and a giant red star will put on a dazzling show for early-rising sky watchers.

  • The Great Mars Rush

    2001Sept. 20, 2011

    Hurtling toward Mars at 22,000 mph, Earth is heading for its closest encounter with The Red Planetin a dozen years. Mars is already a brilliant morning star and it will soon become a dazzling all-night spectacle.

  • Blazing Venus

    2001April 6, 2011

    This is a good time to keep an eye on the fiery second planet from the Sun as it approaches Earth and delivers a dazzling sky show.

  • Look, Listen, Lyrids!

    2001April 6, 2011

    The Lyrid meteor shower peaks on Sunday, April 22nd. Looking at the Lyrids can be fun, but now you can listen to them, too, using NASA's online meteor radar.

  • A Total Eclipse of the Sun -- on the Moon!

    2001April 6, 2011

    This Tuesday, January 9th, sky watchers across some parts of Earth will enjoy a total lunar eclipse. But what would they see if they lived, instead, on the Moon?

  • Hurtling Toward Mars

    2007April 6, 2011

    Earth and Mars are rapidly converging. Relative speed: 22,000 mph. Contrary to rumor, Mars is not about to swell to the size of a full Moon, but there is something eerie and Martian to look for in the night sky next week.

  • Blue Moon over North America

    2007April 6, 2011

    This Thursday evening, May 31st, The Moonover North America will become full for the second time in the month of May. According to folklore, that makes it a blue moon.

  • Great Perseids

    2007April 6, 2011

    The Perseid meteor shower is coming, and experts say it should be a great show.

  • A Fantastic Monday Morning Sky Show

    2007April 6, 2011

    On Monday morning, Nov. 5th, Space ShuttleDiscovery is scheduled to undock from the ISS while the pair are gliding over many US towns and cities. The two spaceships will cut across a glittering expanse of morning stars dotted by bright planets and a Venus-Moon conjunction.

  • Summer Moon Illusion

    2007April 6, 2011

    For sky watchers in the northern hemisphere, this weekend is the best time of the year to experience the mysterious and beautiful Moon Illusion.