• Moon Phase

    Moon Phase

    The moon has a powerful allure, it is full of beauty, legend, myth and romance. Anyone with an interest in the moon will find valuable information here.

  • Skyview Cafe

    Skyview Cafe

    Sky View Cafe is a Java applet that lets you use your web browser to see many types of astronomical information, in both graphical and numerical form.

  • Solar System Simulator

    Solar System Simulator

    The Solar System is made up of the Sun, the planets, their moons, asteroids and comets. Experience an amazing variety of worlds.

  • Space Weather

    Space Weather

    Sure, we have Earth weather, but what about Space weather? View real-time views of space weather and what you might see tonight.

  • Telescopes Observatories

    Telescopes Observatories

    Check our impressive list of telescopes and observatories with their descriptions and links to resources related to them.

Word of the Day
  • A bat.
The word 'reremouse' comes from Middle English reremous, from Old English hrēremūs, hrērmūs ("bat"), equivalent to rear (“to move, shake, stir”) +‎ mouse.
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