Rocket | Science
Here, it probably IS rocket science. A place for me to discuss astrophysics and space exploration, although other sorts of science, math, and technology are likely to make appearances.

"Per aspera ad astra"
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(Source: justgirlythings)

marvelentertainment:

Oh, yeah! Marvel’s “Guardians of the Galaxy” is in theaters everywhere August 1. Get your tickets

marvelentertainment:

Oh, yeah! Marvel’s “Guardians of the Galaxy” is in theaters everywhere August 1. Get your tickets

thewoodlanders:

Frank’s Sixties-style selfies while visiting ESTEC, Noordwijk, 1969.

space-wallpapers:

Rocket engineer Wernher von Braun in front of his saturn V engine

space-wallpapers:

Rocket engineer Wernher von Braun in front of his saturn V engine

humanoidhistory:

240 miles above the Earth, astronaut Lee Morin totes an “S-zero keel pin” during construction of the International Space Station, April 2002. (NASA)

humanoidhistory:

240 miles above the Earth, astronaut Lee Morin totes an “S-zero keel pin” during construction of the International Space Station, April 2002. (NASA)

ohstarstuff:

The famous theoretical physicist John Archibald Wheeler coined the term “It from Bit”. He says that ”It” — every particle, every field of force, even the space-time continuum itself — derives its function, its meaning, its very existence entirely — even if in some contexts indirectly — from the apparatus-elicited answers to yes-or-no questions, binary choices, “bits.” This concept symbolizes the idea that every item of the physical world has at bottom — a very deep bottom, in most instances — an immaterial source and explanation; that which we call reality arises in the last analysis from the posing of yes-or-no questions and the registering of equipment-evoked responses; in short, that all things physical are information-theoretic in origin and that this is a participatory universe.

Wheeler speculated that we are part of a universe that is a work in progress; we are tiny patches of the universe looking at itself — and building itself. It’s not only the future that is still undetermined but the past as well. And by peering back into time, even all the way back to the Big Bang, our present observations select one out of many possible quantum histories for the universe.
At every moment, in Wheeler’s view, the entire universe is filled with events, where the possible outcomes of countless interactions become real, where the infinite variety inherent in quantum mechanics manifests as a physical cosmos. And we see only a tiny portion of that cosmos. Wheeler suspected that most of the universe consists of huge clouds of uncertainty that have not yet interacted either with a conscious observer or even with some lump of inanimate matter. He sees the universe as a vast arena containing realms where the past is not yet fixed.
from Does the Universe Exist if We’re Not Looking?

Also check out fromquarkstoquasars article: John Wheeler’s Participatory Universe

ohstarstuff:

The famous theoretical physicist John Archibald Wheeler coined the term “It from Bit”. He says that ”It” — every particle, every field of force, even the space-time continuum itself — derives its function, its meaning, its very existence entirely — even if in some contexts indirectly — from the apparatus-elicited answers to yes-or-no questions, binary choices, “bits.” This concept symbolizes the idea that every item of the physical world has at bottom — a very deep bottom, in most instances — an immaterial source and explanation; that which we call reality arises in the last analysis from the posing of yes-or-no questions and the registering of equipment-evoked responses; in short, that all things physical are information-theoretic in origin and that this is a participatory universe.

Wheeler speculated that we are part of a universe that is a work in progress; we are tiny patches of the universe looking at itself — and building itself. It’s not only the future that is still undetermined but the past as well. And by peering back into time, even all the way back to the Big Bang, our present observations select one out of many possible quantum histories for the universe.

At every moment, in Wheeler’s view, the entire universe is filled with events, where the possible outcomes of countless interactions become real, where the infinite variety inherent in quantum mechanics manifests as a physical cosmos. And we see only a tiny portion of that cosmos. Wheeler suspected that most of the universe consists of huge clouds of uncertainty that have not yet interacted either with a conscious observer or even with some lump of inanimate matter. He sees the universe as a vast arena containing realms where the past is not yet fixed.

from Does the Universe Exist if We’re Not Looking?


Also check out fromquarkstoquasars article: John Wheeler’s Participatory Universe

thenewenlightenmentage:

Surface impressions of Rosetta’s comet
Surface structures are becoming visible in new images of comet 67P/Churyumov-Gerasimenko taken by the scientific imaging system OSIRIS onboard the European Space Agency’s Rosetta spacecraft. The resolution of these images is now 330 feet (100 meters) per pixel. One of the most striking features is currently found in the comet’s neck region. This part of 67P seems to be brighter than the rest of the nucleus.
As earlier images had already shown, 67P may consist of two parts: a smaller head connected to a larger body. The connecting region, the neck, is proving to be especially intriguing. “The only thing we know for sure at this point is that this neck region appears brighter compared to the head and body of the nucleus,” says OSIRIS Principal Investigator Holger Sierks from the Max Planck Institute for Solar System Research in Germany. This collar-like appearance could be caused by differences in material or grain size, or could be a topographical effect.
Continue Reading

thenewenlightenmentage:

Surface impressions of Rosetta’s comet

Surface structures are becoming visible in new images of comet 67P/Churyumov-Gerasimenko taken by the scientific imaging system OSIRIS onboard the European Space Agency’s Rosetta spacecraft. The resolution of these images is now 330 feet (100 meters) per pixel. One of the most striking features is currently found in the comet’s neck region. This part of 67P seems to be brighter than the rest of the nucleus.

As earlier images had already shown, 67P may consist of two parts: a smaller head connected to a larger body. The connecting region, the neck, is proving to be especially intriguing. “The only thing we know for sure at this point is that this neck region appears brighter compared to the head and body of the nucleus,” says OSIRIS Principal Investigator Holger Sierks from the Max Planck Institute for Solar System Research in Germany. This collar-like appearance could be caused by differences in material or grain size, or could be a topographical effect.

Continue Reading

Astronomy term of the day

multiverseofawesomeness:

Oort Cloud = A huge cloud of icy planetesimals that still orbit the sun at 50,000 AU away. If you don’t remember AU from my earlier post it’s 93 million miles per AU. So the Oort cloud is roughly 4,650,000,000,000 miles roughly 4.7 trillion miles. This is beyond the orbit of Pluto and a lot of these objects haven’t been named or tracked because there are believed to be trillions. 

One of the key characteristics of mathematicians and puzzlers is that they don’t simply give up, they try to prove that it’s impossible.
(via chelonaut)

(Source: minousoft)

(Source: rocketman-inc)