Paperclippe: Opinionated Place Holder



124 posts tagged space

starstuffblog:

Powerful, Pulsating Core of Star 

The blue dot in this image marks the spot of an energetic pulsar — the magnetic, spinning core of star that blew up in a supernova explosion. NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, discovered the pulsar by identifying its telltale pulse — a rotating beam of X-rays, that like a cosmic lighthouse, intersects Earth every 0.2 seconds.

The pulsar, called PSR J1640-4631, lies in our inner Milky Way galaxy about 42,000 light-years away. It was originally identified by as an intense source of gamma rays by the High Energy Stereoscopic System (H.E.S.S.) in Namibia. NuSTAR helped pin down the source of the gamma rays to a pulsar.

The other pink dots in this picture show low-energy X-rays detected by NASA’s Chandra X-ray Observatory.

In this image, NuSTAR data is blue and shows high-energy X-rays with 3 to 79 kiloelectron volts; Chandra data is pink and shows X-rays with 0.5 to 10 kiloeletron volts.

The background image shows infrared light and was captured by NASA’s Spitzer Space Telescope.

Image credit: NASA/JPL-Caltech/SAO View high resolution

starstuffblog:

Powerful, Pulsating Core of Star

The blue dot in this image marks the spot of an energetic pulsar — the magnetic, spinning core of star that blew up in a supernova explosion. NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, discovered the pulsar by identifying its telltale pulse — a rotating beam of X-rays, that like a cosmic lighthouse, intersects Earth every 0.2 seconds.

The pulsar, called PSR J1640-4631, lies in our inner Milky Way galaxy about 42,000 light-years away. It was originally identified by as an intense source of gamma rays by the High Energy Stereoscopic System (H.E.S.S.) in Namibia. NuSTAR helped pin down the source of the gamma rays to a pulsar.

The other pink dots in this picture show low-energy X-rays detected by NASA’s Chandra X-ray Observatory.

In this image, NuSTAR data is blue and shows high-energy X-rays with 3 to 79 kiloelectron volts; Chandra data is pink and shows X-rays with 0.5 to 10 kiloeletron volts.

The background image shows infrared light and was captured by NASA’s Spitzer Space Telescope.

Image credit: NASA/JPL-Caltech/SAO

mountstar:

types of matter

So I hope we all now are aware of the four not three fundimental states of matter (I know even in the past twenty years, which would be my early science education, we were only taught three) (yes I am old).

But did you know there are a fuckton more states of matter?

Okay, so a lot of them don’t appear on earth (okay, so most of them don’t really “appear” anywhere outside of math) (but lots do! Like glass! Which is now sometimes recognized as its own state! And liquid crystal! Which is how your screens work!), but let’s just talk about a couple real quick here:

SuperfluidClose to absolute zero, some liquids form a second liquid state described as superfluid because it has zero viscosity (or infinite fluidity; i.e., flowing without friction).

Bose-Einstein condensate: (This is my favorite one, you guys)  In a BEC, matter stops behaving as independent particles, and collapses into a single quantum state that can be described with a single, uniform wavefunction.

DropletonA “quantum fog” of electrons and holes that flow around each other and even ripple like a liquid.

Degenerate matterElectron-degenerate matter is found inside white dwarf stars. Electrons remain bound to atoms but are able to transfer to adjacent atoms. Neutron-degenerate matter is found in neutron stars. Vast gravitational pressure compresses atoms so strongly that the electrons are forced to combine with protons via inverse beta-decay, resulting in a superdense conglomeration of neutrons.

Quark-gluon plasma:Quark–gluon plasma is a phase in which quarks become free and able to move independently. (This one can exist inside particle accelerators.

Color-glass condensateColor-glass condensate is a type of matter theorized to exist in atomic nuclei traveling near the speed of light. According to Einstein’s theory of relativity, a high-energy nucleus appears length contracted, or compressed, along its direction of motion. As a result, the gluons inside the nucleus appear to a stationary observer as a “gluonic wall” traveling near the speed of light.

SupersolidA supersolid is a spatially ordered material (that is, a solid or crystal) with superfluid properties. Similar to a superfluid, a supersolid is able to move without friction but retains a rigid shape. Although a supersolid is a solid, it exhibits so many characteristic properties different from other solids that many argue it is another state of matter.

And there are so many more! Like dark matter and superglass and equilibrium gel

Now, please do realize that these are not fundamental states of matter like the four in the gif above are. But they are so awesome.

PS I sauced most of this from Wikipedia but there is so much fascinating stuff out there about non-classical states of matter, and some great books as well, if this stuff fascinates you as much as it does me. Matter states are one of my physics fetishes, you guys, so I hope I could at least enlighten you a little bit.

jainz:

rrrick:

astrodidact:

Three years ago, researchers fired whisky to the International Space Station as part of an experiment to see how the conditions in space change flavours. Next month, the whisky will return to Earth.
 http://www.sciencealert.com.au/news/20143108-26097-2.html 

Scotland’s contribution to space research. Good job.



Relevant to you people, and also @daryldalzell View high resolution

jainz:

rrrick:

astrodidact:

Three years ago, researchers fired whisky to the International Space Station as part of an experiment to see how the conditions in space change flavours. Next month, the whisky will return to Earth.

Scotland’s contribution to space research. Good job.

image

Relevant to you people, and also @daryldalzell

A mote of dust suspended in a sunbeam.

Carl Sagan (by SciShow)

uahuah:

xkcd.com

uahuah:

xkcd.com

TARDIGRADES IIIIIN SPPPPPAAAACE

Tardigrades: Adorable Extremophiles (by SciShow)

kenobi-wan-obi:

Debunking The Largest Void in The Universe

Discovered in 2007, this is the largest known void in the universe. More info: http://bit.ly/17CJxaA

Decided to give this reply its own post since I saw people taking off what I said about this pic:

This is extremely false and misleading. If I’m not mistaken (please correct me if I’m wrong), this is actually Barnard 68. B68 is a dark nebula:

"Barnard 68 is a molecular cloud, dark absorption nebula or Bok globule, towards the southern constellation Ophiuchus and well within our own galaxy at a distance of about 500 light-years, so close that not a single star can be seen between it and the Sun. American astronomer Edward Emerson Barnard added this nebula to his catalog of dark nebulae in 1919. He published his catalog in 1927, at which stage it included some 350 objects. Because of its opacity, its interior is extremely cold, its temperature being about 16 K (−257 °C). Its mass is about twice that of the Sun and it measures about half a light-year across." [source]

It’s actually a blob of dust gravitationally collapsing in on its own mass to eventually become a star in like 100,000 years.

This is simply a photoshopped version, whoever did this must have used the liquify tool to give the nebula’s figure a slightly different shape. But what caught my attention aside from that suspicious description about being “completely empty of normal matter and dark matter” was the fact that I remember what the brighter stars surrounding B68 look like.

This is B68:

See how similar it looks? down to the position of the closer stars most visible? The above pic is a sham :/ I love the mysteries of the Universe as much as the next person but there’s really no point in misleading stuff like this. Oh and p.s. the link provided above in the original post is a completely different article talking about a completely different occurrence unrelated to the provided image of B68.

You are here.

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