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Mars Base

NASA - Meals, Equipment Top Cargo List for Dragon - 0 views

www.nasa.gov/...spacex_cargopreview.html

scibyte47 SpaceX dragon iss

shared by Mars Base on 16 May 12 - No Cached
  • about 1,200 pounds of cargo
  • including commemorative patches and pins, 162 meals and a collection of student experiments
  • Most of the cargo's weight, 674 pounds, is in food and crew provisions, including the meals, crew clothing and batteries and other pantry items. A laptop and its accompanying accessories will also make the journey.
  • ...1 more annotation...
  • Tucked inside the Dragon capsule are two NanoRacks dedicated to student experiments that will study a range of microgravity-related areas from microbial growth to water purification.
Mars Base

How One Faulty Nitrogen-Purge Valve Forced SpaceX to Abort | Autopia | Wired.com - 0 views

www.wired.com/...cex-nitrogen-purge-valve-abort

scibyte47 SpaceX PrivateSpaceTravel iss

shared by Mars Base on 22 May 12 - No Cached
  • SpaceX engineers were able to trace the high-pressure problem to a valve that controls the flow of nitrogen used to purge the engine before ignition
  • check valve that allows the nitrogen purge prior to ignition in the Merlin engine was stuck open just before launch
  • stuck valve allowed “liquid oxygen to flow from the main injector [for the rocket engine itself] into the gas generator injector
  • ...2 more annotations...
  • stuck valve meant the liquid oxygen flowed into the gas generator injector, which led to the high pressure in engine five’s combustion chamber. The high pressure caused the flight computer to shutdown the engines, aborting the launch
  • the Falcon 9 may have been okay even if it had launched with the high pressure
Mars Base

SpaceX Aborts Launch of Private Space Capsule to Space Station | Space.com - 0 views

www.space.com/pace-capsule-launch-abort.html

scibyte47 SpaceX PrivateSpaceTravel iss

shared by Mars Base on 21 May 12 - No Cached
  • countdown reached zero and the engines of the Falcon 9 rocket carrying Dragon ignited, only to be cut off seconds later because of an excessive pressure reading in one of the engines
Mars Base

SpaceX Replaces Faulty Rocket Valve for Space Station Flight | Space.com - 0 views

www.space.com/ate-rocket-engine-repairs.html

scibyte47 SpaceX PrivateSpaceTravel iss

shared by Mars Base on 21 May 12 - No Cached
  • engineers have replaced a faulty engine valve
  • aborted its launch attempt a half-second before liftoff
  • Software did what it was supposed to do, aborted engine five, and we went through the remaining engine shutdown
  • ...2 more annotations...
  • Technicians went out to the rocket's launch pad at the Air Force station's Complex 40 Saturday to examine the engines for signs of the issue's root cause
  • During rigorous inspections of the engine, SpaceX engineers discovered a faulty check valve on the Merlin engine
Mars Base

SpaceX May Try to Launch Private Spacecraft Tuesday | SpaceX Dragon | Space.com - 0 views

www.space.com/-space-capsule-launch-2nd.html

scibyte47 SpaceX PrivateSpaceTravel iss

shared by Mars Base on 21 May 12 - No Cached
  • engine glitch on its Falcon 9 rocket in the last second before liftoff forced an abort
  • Engineers traced the issue to a failed check valve in the engine,
  • Mars Base on 21 May 12
     
    SpaceX Hopes to Launch Private Spacecraft to Space Station Tuesday
Mars Base

SpaceX Engineers Race to Repair Engines for May 22 Launch - 0 views

www.universetoday.com/...pair-engines-for-may-22-launch

scibyte47 SpaceX PrivateSpaceTravel iss

shared by Mars Base on 21 May 12 - No Cached
  • Mars Base on 21 May 12
     
    SpaceX Engineers Race to Repair Engines for May 22 Launch
Mars Base

SpaceX Launching Student Experiments & Emblems on ISS Flight | Space.com - 0 views

www.space.com/aunch-student-experiments.html

scibyte47 SpaceX dragon iss PrivateSpaceTravel

shared by Mars Base on 17 May 12 - No Cached
  • then the 15 experiments comprising "Aquarius"
  • will be among the first payloads delivered to the station on a commercial cargo craft.
  • competition among students to fly experiments
  • ...11 more annotations...
  • to design their mission patches
  • A total of 779 student teams submitted proposals for the 15 science slots and nearly 5,000 students offered 2,299 insignia ideas from which just 22 were chosen.
  • Ironically, none of the almost two dozen student mission patches that were selected to fly depict the vehicle that their experiments are riding on.
  • The designs, which range from crayon-colored creations to computer-assisted drawings, also include representations of the Earth, moon and Mars and the American flag.
  • Aquarius, which utilizes liquid mixing tube assemblies that function similar to commercial glow sticks
  • two similar student flight opportunities
  • on NASA's final two space shuttle missions
  • was first slated to fly on a Soyuz spacecraft.
  • When the students' experiments were re-manifested, they went from launching on the Russian rocket to the SpaceX Dragon.
  • The Aquarius package will stay in space for just under six weeks before coming back to Earth on Soyuz TMA-03M, the same spacecraft returning three ISS crew members on July 1.
  • The students' patches will also make the round trip, and will be embossed with a certification stating that they flew in space.
Mars Base

Ancient sea reptile with gammy jaw suggests dinosaurs got arthritis too - 0 views

phys.org/...ent-sea-reptile-gammy-jaw.html

scibyte47 dinosaur arthritis

shared by Mars Base on 16 May 12 - No Cached
  • scientists at the University of Bristol has found signs of a degenerative condition similar to human arthritis in the jaw of a pliosaur, an ancient sea reptile that lived 150 million years ago
  • Such a disease has never been described before in fossilized Jurassic reptiles.
  • has been kept since its discovery in the collections of the Bristol City Museum and Art Gallery.
  • ...15 more annotations...
  • 8 metre long pliosaur was a
  • crocodile-like head, a short neck, whale-like body and four powerful flippers to propel it through water in pursuit of prey.
  • huge jaws and 20 cm long teeth
  • this particular individual was the unfortunate victim of an arthritis-like disease.
  • eroded its left jaw joint, displacing the lower jaw to one side
  • evidently lived with a crooked jaw for many years, because there are marks on the bone of the lower jaw where the teeth from the upper jaw impacted on the bone during feeding
  • the animal was still able to hunt in spite of its unfortunate condition.
  • signs on the skeleton to suggest that the animal could have been an old female who had developed the condition as part of the aging process
  • large size, and the fused skull bones
  • possibly female because its skull crest is quite low – presumed males had a higher crest.
  • In the same way that aging humans develop arthritic hips, this old lady developed an arthritic jaw, and survived with her disability for some time
  • unhealed fracture on the jaw indicates that at some time the jaw weakened and eventually broke
  • With a broken jaw, the pliosaur would not have been able to feed
  • They were at the top of their food chains, so there would not have been any predators to take advantage of an aging, disabled pliosaur – except for another pliosaur.
  • You can see these kinds of deformities in living animals, such as crocodiles or sperm whales and these animals can survive for years as long as they are still able to feed
Mars Base

Crowdsourcing the Hunt for Potentially Dangerous Asteroids - 0 views

www.universetoday.com/...otentially-dangerous-asteroids

scibyte47 Asteroid crowdsourcing

shared by Mars Base on 16 May 12 - No Cached
  • new partnership between the European Space Agency and the Faulkes Telescope Project, which will encourage amateur astronomers to look for asteroids
  • providing educational opportunities that will allow students to discover potentially dangerous space rocks, too.
  • ESA’s Space Situational Awareness (SSA) program is part of an international effort to be on the lookout for space hazards – not only asteroids but disruptive space weather and space debris objects in Earth orbit
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  • asteroids pose a problem
  • hard to see because they can be very dark
  • can approach rather too close before anyone sees them
  • often spotted only once and then disappear before the discovery can be confirmed.
  • ESA is turning to schools and amateur astronomers to help as part of Europe’s contribution to the global asteroid hunt
  • UK’s Faulkes Telescope Project will become the latest team to formally support the SSA program
  • Spain’s La Sagra Sky Survey, operated by the Observatorio Astronomico de Mallorca, began helping SSA earlier this year
  • The Faulkes project has two telescopes where you can sign up for observing online: Haleakala, Hawaii
  • and Siding Spring, Australia
  • For European students, collaborating on exciting ESA activities and possibly detecting new NEOs is very appealing, as its engagement with one of the world’s great space agencies doing critical scientific work.”
  • While the Faulkes project focuses on schools
  • amateurs will be able to freely access the data archives
  • archives are also open to all, and they work
  • Since starting their SSA-sponsored survey work in January 2010, the TOTAS amateur astronomers have identified hundreds of asteroid candidates, over 20 of which have been confirmed and named.
Mars Base

Easter Island statues have full bodies and contain ancient petroglyphs | The Sideshow -... - 0 views

news.yahoo.com/...ent-petroglyphs-235631403.html

scibyte47 EasterIsland

shared by Mars Base on 16 May 12 - No Cached
  • Explorers have long known there was more to the 887 statues on Easter Island—some 2,000 miles west of Chile—than just the statue heads made famous in photographs.
  • most people think of the renowned monolithic statues, they think of the heads only
  • October 2011, the Easter Island Statue Project began its Season V expedition, revealing remarkable photos showing that the bodies of the statues go far deeper underground than just about anyone had imagined.
  • ...6 more annotations...
  • Slideshow of the Easter Island excavation photos]
  • technically full-bodied statues have been known to exist on Easter Island for hundreds of years, some of the new petroglyph writings on the recently excavated statues appear fairly unique
  • many statues have individual petroglyphs
  • these and only one other statue—of over 1,000 we have documented—have  multiple petroglyphs carved as a composition on their backs
  • the excavation sites offer some new "strong evidence" of how the Rapa Nui ancestors managed to manipulate the heavy statues into place with limited technological resources
  • wrote that her team has found tuna vertebrae near the bottom of a recent excavation
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