The Scale of the Universe

This simple site is incredible. My sombrero (galaxy) goes off to Cary and Michael Huang for this elegant visual reference of literally everything in the observable universe. Beginning at human scales you can investigate smaller and smaller. You can fly past "smallest thing visible to the naked eye", past cells and viruses, molecules and sub-atomic particles, … Continue reading The Scale of the Universe

An Ocean Beyond Earth: Europa Awaits

This is so cool. Amazing visuals and very accessible narration. This could be a good introduction to a writing/brainstorming task or an addition to a unit on the solar system.

It’s no secret that Earth’s ocean is filled with life, much of it still a mystery or totally unknown to science. But what about the ocean on other worlds? I’m not talking about sci-fi planets or suspected alien Earths around other stars, either, but right here in our own solar system, where an ocean even deeper than ours lies hidden beneath a global shell of ice.

Scientists believe there is an ocean hidden beneath the surface of Jupiter’s moon Europa. In the video above, NASA-JPL astrobiologist Kevin Hand explains why scientists are so excited about the potential of this ice-covered world to answer one of humanity’s most profound questions: does life exist beyond Earth?

To learn more about Europa, click here, and see the latest enhanced version of a Galileo image of Europa below:

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