1. Visit science.nasa.gov/science-news/science-at-nasa/2013/26feb_russianmeteor/ for more.

    Two weeks after an asteroid exploded over Russia's Ural mountains, scientists are making progress understanding the origin and make-up of the unexpected space rock. This week's ScienceCast presents their latest results.

    # vimeo.com/60510132 Uploaded 171 Plays 0 Comments
  2. Visit science.nasa.gov/ for breaking science news.

    The planet Mercury is about to make its best apparition of the year for backyard sky watchers. Look west at sunset for a piercing pink planet surrounded by twilight blue.

    # vimeo.com/59240353 Uploaded 173 Plays 0 Comments
  3. Visit science.nasa.gov/ for breaking science news.

    A comet falling in from the distant reaches of the solar system could become a naked-eye object in early March. This is Comet Pan-STARRS's first visit to the inner solar system, so surprises are possible as its virgin ices are exposed to intense solar heating.

    # vimeo.com/58726735 Uploaded 744 Plays 0 Comments
  4. Visit science.nasa.gov/ for breaking science news.

    On Feb. 15th an asteroid about half the size of a football field will fly past Earth closer than many man-made satellites. Since regular sky surveys began in the 1990s, astronomers have never seen an object so big come so close to our planet.

    # vimeo.com/58384619 Uploaded 274 Plays 0 Comments
  5. Visit science.nasa.gov/ for breaking science news.

    Astronomers are keeping a close eye on a newly-discovered Comet ISON, which could become visible in broad daylight later this year when it skims through the atmosphere of the sun.

    # vimeo.com/57676513 Uploaded 213 Plays 0 Comments

NASA ScienceCasts

Science@NASA Plus

ScienceCasts are short videos about fun, interesting, and unusual science topics encountered by NASA’s science missions.

For more, please visit science.nasa.gov/

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