The Earthball is a fantastic tool for discussing our planet with children, combining playtime with education!

Cecilia Scorza, EU-UNAWE Germany

Marking Out Galactic Boundaries

The light from hundreds of billions of stars in a galaxy has combined to fill this new space picture with a soft glow. It’s hard to see the shape of this galaxy because its light gently fades away as you move away from the centre, with no solid boundary to mark the edge.

Credit:

ESO

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