30 Jun '16, 6pm

Extraterrestrial opal discovered in Antarctic meteorite

Extraterrestrial opal discovered in Antarctic meteorite

Opal, a stunningly colorful precious stone formed from silica, has been discovered within an Antarctic meteorite. The find, which comes on the heels of a similar discovery last summer involving a Martian meteorite , further lends support to the theory that Earth's water came from extraterrestrial sources. The opal shards were discovered in a meteorite named EET 83309, a conglomerate made up of thousands of broken pieces of rock and minerals. It likely came from a much-larger parent asteroid that was regularly bombarded by radiation, other asteroids, and possibly even comets. "The pieces of opal we have found are either broken fragments or they are replacing other minerals," team leader Professor Hilary Downes of Birkbeck College London said in a statement . "Our evidence shows that the opal formed before the meteorite was blasted off from the surface of the parent asteroid...

Full article: http://www.mnn.com/earth-matters/space/blogs/extraterrest...

Tweets

Signs of ‘healing’ ozone layer over Antarctic: Study https://t.co/dfMtY9tffZ

Signs of ‘healing’ ozone layer over Antarctic: ...

todayonline.com 01 Jul '16, 1am

MIAMI — The hole in the ozone layer over the Antarctic has begun to shrink, signalling good news for the environment decad...

A giant reservoir of water has been discovered under drought-stricken California

A giant reservoir of water has been discovered ...

inhabitat.com 01 Jul '16, 12pm

Rob Jackson, lead author of the study, told Gizmodo , “We need to be careful about using [the water]. California’s groundw...

Giant swimming centipede that bites discovered in Thailand

Giant swimming centipede that bites discovered ...

mnn.com 01 Jul '16, 7pm

Up until recently, it was widely believed that centipedes, creepy-crawlies with seemingly unending legs and a nasty bite, ...

Antarctic ozone layer shows "first fingerprints of healing"

Antarctic ozone layer shows "first fingerprints...

inhabitat.com 01 Jul '16, 2pm

Each year around August, the ozone hole begins to open, and is typically fully formed in October. In the past, scientists ...

This New Species Went Extinct Before It Was Eve...

audubon.org 05 Jul '16, 9pm

But nature is full of surprises, and as Jaramillo now knows, so is the flycatcher. The scientist and expert birder makes r...