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“The Mongolian highlands. Surreal to see a frozen lake surrounded by sand dunes.” — Col. Chris Hadfield

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Photo of a sunrise from space. Taken by Col. Chris Hadfield.

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ohyeahdevelopmentalbiology: raptinawe: This confocal micrograph shows stage V–VI oocytes (800–1000 micron diameter) of an African clawed frog (Xenopus laevis), a model organism used in cell and developmental biology research. Each oocyte is surrounded by thousands of follicle cells, shown in the image by staining DNA blue. Blood vessels, which provide oxygen to the oocyte and follicle cells, are shown in red. The ovary of each adult female Xenopus laevis contains up to 20 000 oocytes. Mature Xenopus laevis oocytes are approximately 1.2 mm in diameter, much larger than the eggs of many other species. (Photo by Vincent Pasque, University of Cambridge/Wellcome Images)(via Up Close: 2012 Wellcome Image Awards)

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Milky Way over the Italian Alps — Leonardo Orazi

The Aerospace Industries Association and Challenger Center crowdfunded a trailer on space exploration for the premier of Star Trek Into Darkness. 1,700 donors made it possible for this trailer to run in fifty cities across the U.S. 

Support exploration

The crowdfunding page

NASA’s plan

1 day ago

the-science-llama:

Reflection and Emission Nebulas
— Rho Ophiuchi Cloud Complex

Credit: Gerald Rhemann // Astrostudio

(via atomstargazer)

46,281 notes | 1 day ago

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Fiddler crabs communicate through waves and gestures. The males, as expected, use their over-sized claws to gain a female’s attention. Fiddlers often live among mangroves and in muddy burrows on beaches. They are detritivores, and they sift through sand to find edibles within it. The motion of bringing sand to the mouth is what gives the Fiddler its name, as it appears the smaller claw is playing the large one like a fiddle. Once the crab is done sifting the sand, it is replaced as a little ball. Dozens of these sand balls will litter the ground around their burrow.

Col. Chris Hadfield's 30 Best Photos From Space

astronemma:

purple-cosmos:

climateadaptation:

Incredible shots tweeted by the rock-star astronaut from the International Space Station

Wow. Absolutely must see.

agreed ^ Especially the iced volcanoes photo

The beauty of Earth from space never fails to astound me. 

(Source: itsfullofstars)

269 notes | 3 days ago

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astronemma: Orion’s Hidden Fiery Ribbon This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sky. This orange glow represents faint light coming from grains of cold interstellar dust, at wavelengths too long for human eyes to see. It was observed by the ESO-operated Atacama Pathfinder Experiment (APEX) in Chile. Image released 15 May 2013.

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wtbw: (via See Inside a Butterfly Chrysalis - Neatorama)