The Journey to Mars Begins Tomorrow
NASA is preparing for the first test flight of the Orion crew vehicle set for an unmanned launch on Dec. 4 at 7:05 a.m. EST from Cape Canaveral, Florida.
The Orion spacecraft is designed to eventually take astronauts beyond low-Earth orbit to destinations never explored by humans. It will serve as the exploration vehicle that will carry the crew to distant planetary bodies, provide emergency abort capability, sustain the crew during space travel, and provide safe reentry from deep space.
This mission is the first of three trial runs that the Orion mission must overcome before NASA deems it safe enough for human space travel.
The next test flights in 2018 and 2021 will use NASA’s Space Launch System rocket (SLS), which is currently in development. When it’s finished, SLS will be the most powerful rocket ever built, boasting even more thrust than the Saturn V booster that blasted astronauts toward the moon in the Apollo era.
The spacecraft will launch atop a Delta IV Heavy, a rocket built and operated by United Launch Alliance. While this launch vehicle will allow Orion to reach an altitude high enough to meet the objectives for this test, a much larger, human-rated rocket will be needed for the vast distances of future exploration missions.
Exploration Flight Test-1, will mark the farthest distance traveled by a human spaceflight vehicle since 1972 made by Apollo 17.
During its grueling four-and-half-hour test mission, NASA’s Orion space capsule must shoot 3,600 miles away from Earth (15 times higher than the International Space Station!), orbit the planet twice, and brave a thick belt of cosmic radiation.
Upon re-entry it must deploy 11 parachutes to slow down from 20,000 miles per hour to 20 mph, while withstanding 4,000-degree Fahrenheit temperatures before plunging into the Pacific Ocean.
Check out these incredible photos from the development and testing of the spacecraft.
Countdown, launch and mission coverage will begin at 4:30 a.m. on NASA TV which is available on air and streaming at nasa.gov/nasatv
Are invisible things visible to invisible creatures? Are invisible creatures visible to each other, themselves? Discuss.
Thoughts that will change the way you think about the universe and your existence
Do you think the Powers that be would ever offer Carmela the Oath even though she’s past latency?
I have to say that I don't see it as something the Powers would do, or indeed, need to do.
Some people, I think, are potentially far more effective without wizardry than with it. We are after all dealing here with a young woman who once shot the Lone Power point-blank (and snickered and said "Oops!" afterwards), and who stopped a violent alien insurrection with a block of Valrhona chocolate.
What we have to remember is that, in its way, wizardry's a bit of a kludge. If everything was working as originally intended, it wouldn't have been needed. But then the Lone One came up with that new and interesting concept It added to the worlds, and since the aftermath, all the greater Pleroma's code has needed constant tweaking. (eyeroll) After all, the addition of wizardry to the equation inevitably costs more energy... and the whole concept of things since the Lone Power's annoying addition of entropy has required saving energy. It's a pain to maintain the balance.
Doubtless there are some of the Powers—most likely the ur-demiurge we'd identify with Thoth, this seems like it'd be in Their bailiwick: code is after all language—who sit around tsk-ing at the mess the code's gotten into, and meanwhile side-eyeing with a certain dry satisfaction those creatures creative enough to intervene unusually effectively in the world without needing to have wizardry added on.
My image of the larger meta of this whole situation, therefore, is of the Powers standing around some kind of viewing instrumentality (why do I keep coming back to that pool in Jason and the Argonauts? Who knows) waiting to see what she's going to do next.
...And laying bets. :)
I have a 'fairest and fallen - greetings and defiance' coffee mug, and I needed/loved/was inspired by it even more than normal today... just to let you know and say thanks!
You’re very welcome.
sigh) Today has been a more effective than usual reminder that entropy is indeed running. Our job now: To run faster.
I just realized that the first antagonist Kit and Nita faced together was a helicopter parent.
Scientists' consensus is that a layer of liquid water exists beneath Europa's surface, and that heat from tidal flexing allows the subsurface ocean to remain liquid.
Europa's surface temperature averages about 110 K (−160 °C; −260 °F) at the equator and only 50 K (−220 °C; −370 °F) at the poles, keeping Europa's icy crust as hard as granite. The first hints of a subsurface ocean came from theoretical considerations of tidal heating (a consequence of Europa's slightly eccentric orbit and orbital resonance with the other Galilean moons). Galileo imaging team members argue for the existence of a subsurface ocean from analysis of Voyager and Galileo images.
The most dramatic example is "chaos terrain", a common feature on Europa's surface that some interpret as a region where the subsurface ocean has melted through the icy crust.
The thin-ice model suggests that Europa's ice shell may be only a few kilometers thick. However, most planetary scientists conclude that this model considers only those topmost layers of Europa's crust that behave elastically when affected by Jupiter's tides.
The Hubble Space Telescope acquired an image of Europa in 2012 that was interpreted to be a plume of water vapour erupting from near its south pole The image suggests the plume may be 200 km (120 mi) high, or more than 20 times the height of Mt. Everest.
So far, there is no evidence that life exists on Europa, but Europa has emerged as one of the most likely locations in the Solar System for potential habitability. Life could exist in its under-ice ocean, perhaps in an environment similar to Earth's deep-ocean hydrothermal vents. Even if Europa lacks volcanic hydrothermal activity, a 2016 NASA study found that Earth-like levels of hydrogen and oxygen could be produced through processes related to serpentinization and ice-derived oxidants, which do not directly involve volcanism.
In 2015, scientists announced that salt from a subsurface ocean may likely be coating some geological features on Europa, suggesting that the ocean is interacting with the seafloor. This may be important in determining if Europa could be habitable. The likely presence of liquid water in contact with Europa's rocky mantle has spurred calls to send a probe there.
Europa Clipper is an interplanetary mission in development by NASA comprising an orbiter. Set for a launch in October 2024, the spacecraft is being developed to study the Galilean moon Europa through a series of flybys while in orbit around Jupiter.
The Europa Lander is a proposed astrobiology mission concept by NASA to Europa, an icy moon of Jupiter. If funded and developed as a large strategic science mission, it would be launched in 2027 to complement the studies by the Europa Clipper orbiter mission and perform analyses on site. NASA's budget for fiscal year 2021 neither mandates nor allocates any funds to the mission leaving its future uncertain.
The objectives of the mission are to search for biosignatures at the subsurface ≈10 cm, to characterize the composition of non-ice near-subsurface material, and determine the proximity of liquid water and recently erupted material near the lander's location.
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Parallel universe theory
I have this weird theory that some people are drawn to each other because their atoms were near each other when the universe was created and over time the same atoms keep coming back together
A personal temporospatial claudication for Young Wizards fandom-related posts and general space nonsense.
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