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Mars Base

Expedition 32 Lands Safely in Kazakhstan - 0 views

www.universetoday.com/...-32-lands-safely-in-kazakhstan

scibyte63 Soyuz Expedition32

shared by Mars Base on 17 Sep 12 - No Cached
  • landed
  • 02:54 UTC on Monday, September 17 (8:53 a.m. Kazakhstan time Monday, 10:53 p.m. EDT Sunday, September 16
  • Expedition 33 is now underway as Commander Suni Williams and Flight Engineers Aki Hoshide and Yuri Malenchenko continue their stay until Nov. 12
Mars Base

How Supersonic Skydiver Will Freefall Through Earth's Atmosphere | Felix Baumgartner Sp... - 0 views

www.space.com/-skydive-earth-atmosphere.html

scibyte66 RedBullStratos

shared by Mars Base on 06 Oct 12 - No Cached
  • Earth's atmosphere starts 430 miles (690 kilometers) up.
  • upper boundary of the thermosphere, the outermost layer of the atmosphere
  • Solar radiation bombards this layer, striking its sparse air molecules and causing them to emit flashes of light: the auroras
  • ...6 more annotations...
  • altitude of 53 miles (85 km), the thermosphere transitions into the mesosphere, an atmospheric layer known for its faint clouds, as well as electrical discharge events called red sprites and blue jets.
  • e stratosphere extends from an altitude of 6 miles (10 kilometers) up to about 30 miles (50 km) above the surface. The air pressure drops from 10 percent of its value at sea level to just 0.1 percent
  • , unlike in the layers above and below, absorption of ultraviolet sunlight by ozone causes the temperature to increase as you move up in altitude
  • coupling of temperature with altitude prevents convection from happening, and so the air in this layer is dynamically stable.
  • troposphere, which includes everything from an altitude of 6 miles down over most of Eart
  • re all weather happens, as well as longer-term processes such as the jet stream. In this layer, temperature and pressure both drop as you move up in altitude
Mars Base

One Weird Trick To Probe Exoplanet Atmospheres - 0 views

www.universetoday.com/...to-probe-exoplanet-atmospheres

scibyte 53 exoplanet

shared by Mars Base on 27 Jun 12 - No Cached
  • Mars Base on 27 Jun 12
     
    tion coming from the planet versus that emitted by its star, allowing the velocity and mass of Tau Boötis b to be determined. "Thanks to the high quality observations provided by the VLT and CRIRES we were able to s
Mars Base

New Deep Space Capsule Passes NASA Chief's Inspection NASA & Orion Multipurpose Crew Ve... - 0 views

www.space.com/cv-spacecraft-exploration.html

scibyte29 NASA Orion capsule multimedia

shared by Mars Base on 13 Jan 12 - No Cached
  • engineers have completed a suite of structural, acoustic and vibration tests on key components of the spaceship
  • Orion Multi-Purpose Crew Vehicle
  • stacked hardware stretching 53 feet (16 meters)
  • ...10 more annotations...
  • unmanned 2014 EFT-1 mission will blast Orion into space aboard a Delta 4-Heavy rocket. The capsule will orbit Earth twice while climbing to an altitude of several thousand miles, then rocket back in a high-speed plunge to validate its heat shield and other systems.
  • Artist's rendering of the Multi-Purpose Crew Vehicle on a deep space mission.CREDIT: NASA
  • Acoustic testing
  • recent acoustic testing of the Orion crew module/launch abort system structure involved hundreds of sensors planted throughout the hardware.
  • subjected it to the flight environment
  • chamber gets up to 150 decibels…like a rifle shot right next to your ear. It's pretty loud. All that sound…it's like a really loud rock concert
  • Huge heat shield
  • underside of Orion's crew module is the heat shield
  • measuring 16.5 feet (5 m) in diameter
  • Thermal Protection System advances heritage materials from the NASA's space shuttle and Apollo programs to create a next-generation system that can withstand the extreme environments of piloted deep space missions.
Mars Base

Teams Working Cooling System Issue; Station Crew Carries on With Research | NASA - 0 views

www.nasa.gov/...-crew-carries-on-with-research

scibyte113 iss

shared by Mars Base on 13 Dec 13 - No Cached
  • Dec. 12, 2013
  • suspect a flow control valve actually inside the pump module itself might not be functioning correctly
  • hat flow control valve regulates the temperature of the ammonia in the loop so that when the ammonia is re-introduced into the heat exchanger on the Harmony node it does not freeze the water also flowing through the exchange
  • ...17 more annotations...
  • Mission managers have deferred the decision on whether to proceed with or postpone the launch of the Orbital Sciences’ Cygnus commercial cargo craft until more is known about the flow control valve issue
  • Cygnus is currently scheduled to launch Dec. 18 from Wallops Flight Facility in Virginia and rendezvous with the station on Dec. 21
  • Wednesday, the first of two reboosts of the station took place to raise the station’s orbit and set up
  • for Russian vehicle launches and dockings in 2014
  • also places the station in position for the arrival of Orbital Sciences’ Cygnus commercial cargo vehicle this month
  • e 7-minute, 41-second firing
  • Expedition 38 crew members also tackled a variety of other tasks Thursday, including maintenance work and scientific research
  • work on the Advanced Resistive Exercise Device, or ARED, which allows the crew to perform a wide range of weightlifting exercises in the weightless environment of the station
  • installed a jumper in the Quest airlock to provide contingency power to the airlock’s secondary shell heaters
  • prepared the U.S. spacesuits for some upcoming scheduled maintenance
  • deployed eight bubble detectors for the RaDI-N experiment, which seeks to characterize the neutron radiation environment of the station
  • removed and stowed a NanoRacks platform. NanoRacks provides lower-cost microgravity research facilities for small payloads utilizing a standardized “plug-and-play” interface
  • spoke with students in Kyoto, Japan, via the amateur radio aboard the station
  • unloading cargo from the Progress 53 cargo vehicle that docked to the station on Nov. 29
  • collected micro-accelerometer data for the Identification experiment, which examines the station’s dynamic loads during events such as dockings and reboosts
  • continued the replacement of fans in the Zvezda service module with low-noise units and used a sound level meter to measure the results.
  • conducted routine maintenance on the life support systems in the Zvezda service module
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