sagansense:

Watch the full episode here.
coolsciencegifs:

"Hydrophobic water"
This liquid with a high surface tension is water mixed with aerogel powder (I’m going to do a post on aerogel next as it really is awesome). The membrane of the liquid has some hydrophobic qualities that cause the droplets of water to repel each other and not plop back together.
"For anyone with any slight interest in biology, this is how your cells stay separate. The lipid membranes essentially work the same way, making hydrophobic force between the water content inside and outside the cell."
source

coolsciencegifs:

"Hydrophobic water"

This liquid with a high surface tension is water mixed with aerogel powder (I’m going to do a post on aerogel next as it really is awesome). The membrane of the liquid has some hydrophobic qualities that cause the droplets of water to repel each other and not plop back together.

"For anyone with any slight interest in biology, this is how your cells stay separate. The lipid membranes essentially work the same way, making hydrophobic force between the water content inside and outside the cell."

source

physicistsneedlovetoo:

nihilsupernum:

methdragon:

science side of tumblr where do babies come from

Maybe you should ask your mother.

aldoclemens:

An amazing, billion-year show: a dance of half a trillion stars 
gravitationalbeauty:

Dust Sculptures in the Rosette Nebula
pixelthatlived:

An alkaseltzer in
SPAAAAAACEEEEEEE

pixelthatlived:

An alkaseltzer in

SPAAAAAACEEEEEEE

The most terrifying fact about the universe is not that it is hostile but that it is indifferent; but if we can come to terms with this indifference and accept the challenges of life within the boundaries of death—however mutable man may be able to make them—our existence as a species can have a genuine meaning and fulfillment. However vast the darkness, we must supply our own light.
Stanley Kubrick (via purplebuddhaproject)
historicaltimes:

Buzz Aldrin’s self-portrait during Gemini 12 with the Earth reflecting off his visor, 12 November 1966

historicaltimes:

Buzz Aldrin’s self-portrait during Gemini 12 with the Earth reflecting off his visor, 12 November 1966

kenobi-wan-obi:

Windmill Galaxy by Fred Espenak


  The brightest part of the autumn Milky Way appears in the southwest during the early evening hours. It includes the brighter summer constellations of Scorpius, and Sagittarius. A lone windmill is silhouetted in the foreground.

kenobi-wan-obi:

Windmill Galaxy by Fred Espenak

The brightest part of the autumn Milky Way appears in the southwest during the early evening hours. It includes the brighter summer constellations of Scorpius, and Sagittarius. A lone windmill is silhouetted in the foreground.

kenobi-wan-obi:

HiRISE Updates

Dramatic Dune Destination

This image of a sand dune field in a Southern highlands crater was acquired when the Sun was just 5 degrees above the horizon. As a result, the image is mostly shadows, with sharply-delineated dune crests sticking up into the sunlight.

The especially bright patches—bluish in enhanced color—are due to seasonal frost that is accumulating as this hemisphere approaches winter.

A Complex Valley Network Near Idaeus Fossae

Many valleys occur all over Mars that reveal an extensive ancient history of liquid water erosion. While these valley systems are typically now covered with fine soils and sand dunes, the overall scale and shape of the valleys reveals much about the ancient climate.

Ejecta in Excess

When impact craters are formed, the material that once resided in the subsurface is blown upward and outward.

This material falls back and settles around the newly formed crater into what is called an “ejecta blanket.” It often appears as a layer on top of the original surface extending radially outward from the crater.

Craters within Craters

Sandwiched between a crater nearly 4 kilometer across and a much larger and older crater over 15-kilometers in diameter is this small impact crater with light-toned material exposed in its ejecta.

scienceisbeauty:

19 Portugal Place Cambridge
19 March ’53

My Dear Michael,

Jim Watson and I have probably made a most important discovery. We have built a model for the structure of de-oxy-ribose-nucleic-acid (read it carefully) called D.N.A. for short. You may remember that the genes of the chromosomes —…

zerostatereflex:

NASA’s Starshade

This animation shows the prototype starshade, a giant structure designed to block the glare of stars so that future space telescopes can take pictures of planets.”

(That last GIF is a prototype,..it’s like we’re using the natural mechanics of flower petals for space..so awesome.)

One day this may be used to take the first picture of another Earth. 

Education is what people do to you, learning is what you do to yourself.

MIT Media Lab director Joi Ito at #TED2014. Pair with this excellent read on how to fuel the lifelong engine of learning beyond formal education.   (via educationalliberty)

Well if that doesn’t hit the nail on the proverbial head, I don’t know what does. Let’s be learning facilitators, not educators.

(via jtotheizzoe)