A marine creature's magic trick explained

Tiny ocean creatures known as sea sapphires perform a sort of magic trick as they swim: One second they appear in splendid iridescent shades of blue, purple or green, and the next they may turn invisible (at least the blue ...

dateSep 02, 2015 in Materials Science
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Prawn Nebula: Cosmic recycling

Dominating this image is part of the nebula Gum 56, illuminated by the hot bright young stars that were born within it. For millions of years stars have been created out of the gas in this nebula, material which is later ...

dateSep 02, 2015 in Astronomy
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