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  Planet Families 2

  Build a solar system in 3d.
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  Matter Sorter

  Is it a solid, liquid, gas, or plasma?

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  Starchitect

  Build planetary systems at 1 million years per minute
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  Drake Equation

  What are the chances that we're not alone?
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  Fly to Mars

  Launch a spacecraft to Mars.
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  Earth or Mars?

  Identify images by the planet they were taken on.
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  Magneto Bowling

  Knock down pins with a proton ball.
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  Our Place in Space

  You are out there.
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  The Great Escape

  Escape from cores of stars.
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  Wrath of Ra

  Smack Earth with solar events.
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  Planetary Pinball

  Send balls along magnetic field lines
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  Space Challenge

  Play some trivia
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  Solar Vision

  Look at the Sun in different ways.
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  Risky Business

  Arrange dangers from lowest to highest
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  Matter Sorter

  Is it a solid, liquid, gas, or plasma?
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  Find the Features

  Locate prominent features on Earth and Mars.
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  Small and Large

  Arrange objects from closest to farthest.
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  Planet Plunge

  Send a probe into Jupiter's core
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  Rubble!

  Use your ship to push asteroids to safe trajectories
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  Magneto Mini Golf

  Play golf with charged particles.
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  What if it hit my town?

  Drop a rock on someone
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  Can You Find...

  Search for features on the surface of Mars.
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  Friend or Foe

  Are giant planets friends or foes?
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  How Big?

  Drop objects onto the surface of Mars.
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  Drive a Rover

  Drive a rover on Mars.
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  Winogradsky Column

  Create a bacterial community.
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  Fly in 3D

  Fly over Mars in 3D.
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  Looking for Life

  See if you can recognize life.
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  Light Curves

  Guess which asteroid by its light curve
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  Near and Far

  Arrange objects from smallest to largest.
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  Planet Families

  Build a solar system.
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  Extreme Seasons

  3D game showing how seasons change
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  Listening for Life

  Are these sounds natural or intelligent?
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  Deflect an Asteroid

  Keep asteroids from destroying Earth