Some of these are genius RT Letitia Potorac: 40 Funny optical illusions: tinyurl.com/arnemdu

Working tractor beam caught on video - move tiny things, Star Trek style bit.ly/X5sH9H #trekkie

Tonight's finale: Venezuelan valley framed by misty clouds - mysterious, beautiful and surreal.

Thankyou Matt Ridley, 'Genome' was very helpful in explaining DNA to my year 10 class. Book analogy is great!

These chimps had been locked indoors for their entire lives. This is them seeing sunlight for the first time youtube.com/watch?v=YCuxab…

Take a look at the most breath taking photos of the Andromeda Galaxy ever taken >> bit.ly/Vnz1df

Tonight's finale: Full Moon rising. So near, and yet...

What creates the #wind? New study credits rainforest, not temperature differences bit.ly/VuWRFS #climate

Ooo - 'living crystals' wired.com/wiredscience/2…

For your viewing pleasure: The Mind-Warping Animated GIF #Art of Paolo Čerić ow.ly/hfSWa

Oh. Earth and others lose status as Goldilocks worlds newscientist.com/article/dn2311…

Why owls don't pass out when they swivel their heads around 270 degrees. bbc.in/WGHXgW

#Asteroid that slammed Earth, killing the #dinosaurs, may have been a twin terror bit.ly/WGWHfG

Our week in images bit.ly/WFyT9g

Can you print a moonbase? zdnet.com/can-you-build-…

The gold-digging bacterium nature.com/news/gold-digg…

What really goes on when we're sunbathing? bit.ly/14LqfN8

Richard III: DNA confirms twisted bones belong to king gu.com/p/3dh34/tf

Meet the ancestor: RT Ri_Aus: VIDEO: The first placental mammal reconstructed - first A Week in Science for 2013 riaus.org.au/articles/a-wee…

@alistairseddo Some revision tips would be nice also!