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Posted on 23rd Jul at 11:41 PM, with 77,132 notes

un-feuilly-de-papier:

un-feuilly-de-papier:

What do french people call a really bad thursday?

a trajeudi

Posted on 23rd Jul at 11:19 PM, with 120 notes
icantbelieveitsnotscifi:

The structure of an animal cell
View high resolution

icantbelieveitsnotscifi:

The structure of an animal cell

Posted on 23rd Jul at 4:51 AM

I only have 30 followed anyways and I don’t think I even know any of them

Posted on 23rd Jul at 4:51 AM, with 1 note

I’m ugly I’m fat and I’m too scared to even post a “selfie” to prove it

Posted on 23rd Jul at 2:07 AM, with 562 notes

miketrapp:

hallekiefer:

ryanxilliams:

"Scully Likes Science"

Flawless.

SCIENCE

yes yes yes yes yes yes yes

Posted on 23rd Jul at 12:57 AM, with 269,806 notes

sagansense:

startagainwithabrandnewname:

SAVE ALL THE CATS :’(

The photographer responsible for the above photograph is Mattias Klum. He spoke about this experience during National Geographic Live! Watch him explain this face-to-face encounter HERE.

Posted on 23rd Jul at 12:54 AM, with 16,079 notes

blackfeminism:

do people say “bad neighborhood” for cities next to all-white high schools where the boys are getting high every day and raping girls? do they even say “bad neighborhood” for cities with large kkk meetings? or is bad neighborhood a strictly anti-black code?

Posted on 23rd Jul at 12:51 AM, with 205 notes

ohstarstuff:

Chandra X-ray Observatory Celebrates 15th Anniversary

To celebrate, the Chandra team released four newly processed images of supernova remnants.

TYCHO
More than four centuries after Danish astronomer Tycho Brahe first observed the supernova that bears his name, the supernova remnant it created is now a bright source of X-rays. The supersonic expansion of the exploded star produced a shock wave moving outward into the surrounding interstellar gas, and another, reverse shock wave moving back into the expanding stellar debris. This Chandra image of Tycho reveals the dynamics of the explosion in exquisite detail. The outer shock has produced a rapidly moving shell of extremely high-energy electrons (blue), and the reverse shock has heated the expanding debris to millions of degrees (red and green). There is evidence from the Chandra data that these shock waves may be responsible for some of the cosmic rays - ultra-energetic particles - that pervade the Galaxy and constantly bombard the Earth.

THE CRAB NEBULA
In 1054 AD, Chinese astronomers and others around the world noticed a new bright object in the sky. This “new star” was, in fact, the supernova explosion that created what is now called the Crab Nebula. At the center of the Crab Nebula is an extremely dense, rapidly rotating neutron star left behind by the explosion. The neutron star, also known as a pulsar, is spewing out a blizzard of high-energy particles, producing the expanding X-ray nebula seen by Chandra. In this new image, lower-energy X-rays from Chandra are red, medium energy X-rays are green, and the highest-energy X-rays are blue.

3C58
3C58 is the remnant of a supernova observed in the year 1181 AD by Chinese and Japanese astronomers. This new Chandra image shows the center of 3C58, which contains a rapidly spinning neutron star surrounded by a thick ring, or torus, of X-ray emission. The pulsar also has produced jets of X-rays blasting away from it to both the left and right, and extending trillions of miles. These jets are responsible for creating the elaborate web of loops and swirls revealed in the X-ray data. These features, similar to those found in the Crab, are evidence that 3C58 and others like it are capable of generating both swarms of high-energy particles and powerful magnetic fields. In this image, low, medium, and high-energy X-rays detected by Chandra are red, green, and blue respectively.

G292.0+1.8:
At a distance of about 20,000 light years, G292.0+1.8 is one of only three supernova remnants in the Milky Way known to contain large amounts of oxygen. These oxygen-rich supernovas are of great interest to astronomers because they are one of the primary sources of the heavy elements (that is, everything other than hydrogen and helium) necessary to form planets and people. The X-ray image from Chandra shows a rapidly expanding, intricately structured, debris field that contains, along with oxygen (yellow and orange), other elements such as magnesium (green) and silicon and sulfur (blue) that were forged in the star before it exploded.

Credit: 
http://chandra.harvard.edu

tycho makes me scream

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