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Mars Base

Touchdown! Soyuz Spacecraft Lands Safely with Russian-US Crew | Space.com - 0 views

www.space.com/fely-with-russian-us-crew.html

scibyte63 Soyuz

shared by Mars Base on 17 Sep 12 - No Cached
  • Soyuz spacecraft carrying two Russian cosmonauts and an American spaceflyer has landed safely back on Earth
  • 16 September 2012
  • Russian cosmonauts Gennady Padalka, Sergei Revin and NASA astronaut Joe Acaba
  • ...10 more annotations...
  • local time was early Monday morning.
  • Soyuz crew was in good health and spirits
  • He and his Russian crewmates signed their Soyuz spacecraft, which is destined for a Russian museum
  • 125-day spaceflight began in mid-May and included three spacewalks and several robotic cargo ship arrivals.
  • . The three spaceflyers were originally slated to blast off in March, but a pressure test incident cracked their first Soyuz capsule, causing a six-week delay while another spacecraft was readied.
  • launched on May 14 and arrived at the $100 billion orbiting lab May 17. Just eight days later, SpaceX's robotic Dragon capsule docked with the station on a historic demonstration mission, becoming the first private vehicle ever to do so.
  • on Sept. 5, crewmates Sunita Williams and Akihiko Hoshide performed an extra spacewalk — the third for the mission — to replace a vital power unit on the station's backbone-like truss. Using improvised tools such as spare parts and a toothbrush
  • a stuck bolt that had delayed the fix a week earlier
  • Expedition 33
  • will have the station to themselves until mid-October, when three more astronauts will float through the hatch and bring the expedition up to its full complement of six crewmembers.
Mars Base

Scientist: Russia's Failed Mars Moon Probe Worth a Second Try | Russia Phobos-Grunt Spa... - 0 views

www.space.com/bos-grunt-spacecraft-life.html

Phobos-Grunt

shared by Mars Base on 09 Dec 11 - No Cached
  • 08 December 2011
  • European Space Agency to resume tracking Phobos-Grunt this week, after calling off tracking last Friday (Dec. 2),
  • the probe was said to have shown signs of uncontrolled tumbling, yet reports in recent days suggest that its attitude control may now be working
  • ...3 more annotations...
  • unless Phobos-Grunt not only can be contacted, but can be made to accept commands to boost its orbit, the spacecraft will reenter the atmosphere in early January.
  • it is possible that the vibrations and tumbling that will set in as the speeding craft begins interacting significantly with mesospheric air will dislodge the vehicle's most famous component — the return capsule that was to carry a 200-gram sample from the Phobosian surface back to Earth —  sparing it a fiery death
  • the capsule might make a survivable reentry trajectory, miss the oceans, and come down on land, just as it was designed to do
Mars Base

Delay for space station's 1st private cargo run (Update) - 0 views

www.physorg.com/...tation-1st-private-hookup.html

scibyte30 SpaceStation SpaceX

shared by Mars Base on 21 Jan 12 - No Cached
  • SpaceX planned to launch its unmanned supply ship from Cape Canaveral on Feb. 7
  • company said more testing was needed with the spacecraft, named Dragon
  • confirmed the launch would not occur until late March.
  • ...10 more annotations...
  • as much as he'd like to take part in the historic event, it's important that SpaceX fly when it's ready. Burbank will return to Earth in mid-March.
  • Just over a year ago
  • Space Ex
  • launched a test version of the capsule
  • NASA is counting on companies like SpaceX to keep the station stocked, now that the shuttles are retired.
  • Russian, European and Japanese space agencies - all government entities - are picking up the slack as best they can, sending up regular shipments to the orbiting outpost
  • It may take a little more time, but when it happens, it's going to be amazing
  • first Dragon capsule to visit the space station will carry several hundred pounds of astronaut provisions - nothing crucial, in case of a failure
  • Astronauts aboard the space station will use a huge robot arm to grab and berth the Dragon
  • it will be able to return scientific samples to Earth, Burbank noted. None of the other countries' supply ships can do that; they burn up on re-entry.
Mars Base

Skydiver Baumgartner Takes Test Jump from 30 kilometers - 0 views

www.universetoday.com/...s-test-jump-from-30-kilometers

scibyte56 SpaceSkyDive

shared by Mars Base on 26 Jul 12 - No Cached
  • practice jump
  • July 25, 2012)
  • prepare for his leap from the edge of space later this year where he hopes to not only break the sound barrier with his body, but also break the record for the longest freefall
  • ...9 more annotations...
  • rode his specially-made pressurized capsule via a helium balloon and jumped from an altitude of over 29,455 meters (96,640 feet), falling for 3 minutes, 48 seconds, reaching speeds of 862 km/h (536 mph).
  • this is the final milestone before his attempt of jumping from 36,500 meters (120,000 feet), to break the current jump record held by Joe Kittinger a retired Air Force officer – and Baumgartner’s current adviser and mentor — who jumped from 31,500 m (31.5 km, 19.5 miles) in 1960.
  • test launch was twice delayed due to bad weather
  • balloon took about 90 minutes to reach the desired altitude
  • floated down on his parachute for about eight minutes
  • landed in the New Mexico desert, just about 15 minutes by helicopter from his launch site
  • balloon over four times as large as the one that carried Baumgartner for the first test flight in March
  • did not provide an official date for the record-setting attempt
  • it is now subject to favorable weather conditions and critical post-jump assessments of the capsule and equipment
Mars Base

Commercial Spaceship Builders Ponder Future Without NASA Funding | Space.com - 0 views

www.space.com/-space-taxis-nasa-funding.html

scibyte47 SpaceX iss PrivateSpaceTravel

shared by Mars Base on 16 May 12 - No Cached
  • SpaceX is one of several aerospace firms who are competing for NASA funding under the third and final phase of NASA's commercial crew development program
  • Proposals for this stage of the competition, called Commercial Crew integrated Capability(CCiCap), require companies to present a complete launch system — rocket and vehicle — for consideration
  • company is facing some stiff competition from other aerospace firms, including Boeing and Sierra Nevada Corp
  • ...6 more annotations...
  • NASA is expected to announce at least two recipients for CCiCap funding awards in August.
  • even if SpaceX is not selected for the final round of NASA funding, a crewed version of the Dragoncapsule will not be mothballed
  • Boeing
  • willing to continue that at that level? I doubt it — maybe at some lower level, but I really don't know."
  • Alliant Techsystems (ATK)
  • the company will not stop developing the launch system if they are not selected by NASA.
Mars Base

Send Your Names to an Asteroid, NASA Says - 0 views

www.scienceworldreport.com/...d-on-osiris-rex-spacecraft.htm

scibyte116 Asteroid

shared by Mars Base on 18 Jan 14 - No Cached
  • NASA invited the public to submit their names that will be engraved on a microchip aboard a spacecraft that will head to the 1,760-foot-wide asteroid.
  • The spacecraft will be sent to the asteroid where it will collect about two ounces of surface material and return with it to Earth in a sample-return capsule in 2023
  • submit their names online before September 30 at 'Message to Bennu.'
  • ...5 more annotations...
  • your name not just stays up there for 500 days but will remain in space even after the spacecraft returns the capsule to Earth.
  • Those who have submitted their names can download and print a certificate documenting their participation in the OSIRIS-REx mission
  • Participants who have registered their names and who 'follow' or 'like' the asteroid mission on Facebook and Twitter will get notifications on the status of their name in space from the time it is launched and until the samples are returned to Earth in 2013.
  • The aim of the OSIRIS-Rex mission is to address the basic questions on the composition of the early solar system.
  • Once the samples return to the Earth, the spacecraft will be placed into a long term solar orbit around the sun, along with the microchip on which the names are engraved.
Mars Base

Astronaut Ice Cream: Frozen Dessert Launching to Space Station | Space.com - 0 views

www.space.com/ream-spacex-dragon-launch.html

scibyte66 SpaceX

shared by Mars Base on 07 Oct 12 - No Cached
  • The vanilla with swirled chocolate sauce ice cream cups won't melt on their three-day journey to the space station thanks to a freezer on board the Dragon capsule
  • e first time we are taking powered cargo up. We are taking up a GLACIER freezer, which has refrigerated science samples in it
  • The mini-fridge sized freezer previously flew aboard the space shuttle.
  • ...3 more annotations...
  • GLACIER, or General Laboratory Active Cryogenic ISS Experiment Refrigerator, is primarily used to preserve science samples that require temperatures between minus 301 and 39 degrees Fahrenheit (minus 160 and 4 degrees Celsius
  • The brand of ice cream flying in the Dragon's GLACIER is Blue Bell Creameries, a Texas dairy that has a strong fan base in Houston
  • Blue Bell ice cream has been flown to the space station before. The creamery's cups first launched to the orbiting laboratory in 2006 on board the space shuttle Atlanti
Mars Base

Private Groups Set Sights on Deep Space | Mars, the Moon & Asteroids | Space.com - 0 views

www.space.com/ht-deep-space-exploration.html

scibyte84 PrivateSpaceTravel

shared by Mars Base on 28 Feb 13 - No Cached
  • The nonprofit Inspiration Mars Foundation announced
  • (Feb. 27) that it aims to launch two people on a 501-day Mars flyby mission in January 2018
  • main goals are to generate excitement about space travel and test out technologies that will be needed to put boots on Mars in the future
  • ...2 more annotations...
  • mission would combine a commercial space capsule and inflatable module into a single spacecraft that will carry a man and a woman, possibly a married couple, to Mars and back. 
  • A number of companies and nonprofit organizations are developing plans to visit Mars, the moon and asteroids, for a variety of purposes
Mars Base

ESTCube-1 - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/ESTCube-1

scibyte86 ESTCube

shared by Mars Base on 13 Mar 13 - No Cached
  • scheduled to be launched to orbit in second half of 2013
  • Student Satellite is an educational project that university and high school students can participate in
  • The CubeSat standard for nanosatellites was followed during the engineering of ESTCube-1, resulting in a 10x10x11.35 cm cube, with a volume of 1 liter and a mass of 1.048 kg.
  • ...44 more annotations...
  • According to the CubeSat standard there are three different sized CubeSats corresponding to size 1U, 2U and 3U. Base side lengths are the same but height is 2 to 3 times bigger than 1U CubeSats
  • Mass is also set in CubeSat standard, the highest possible mass for 1U CubeSat is 1300 grams, 2U CubeSat 2600 grams and 3U CubeSat 4000 grams
  • CubeSat base side length must be 100.0±0.1 millimeters and satellite height must be 113.5±0.1 mm
  • the Estonian satellite
  • a 1U CubeSat
  • Although
  • its main purpose was to educate students, the satellite does have a scientific purpose.
  • On board of the satellite is an electric solar wind sail (e-sail) which was created by a Finnish scientist Pekka Janhunen
  • it is the first real experimentation of the e-sail
  • 10 meters of e-sail 50 to 20 micrometers thick wire of high-technology structure so-called Heytether will be deployed from the satellite.
  • The deployment of the Heytether can be detected by decrease of the satellite's speed of rotation or by a on-board camera
  • To control the loaded solar wind sail elements interaction with the plasma surrounding the earth and the effect it has on the spacecraft spinning speed the spacecraft has two on-board nanotechnologic electron emitters/gun
  • The electron emitters are connected to the e-sail element and by shooting out electrons it loads the e-sail element positively to 500 volts
  • The positive ions in the plasma push the e-sail element and have an influence on the satellites rotation speed
  • The effect of the e-sail is measured by the change in rotation speed
  • The camera is used to take a picture of Earth and the successfully deployed Heytether. [edit]
  • ESTCube-1 will be sent to orbit by the European Space Agency's rocket Vega in spring of 2013
  • Start in spring of 2013
  • Half an hour after the satellites deployment from the start capsule satellites antennas will be opened and radio transmitter and important subsystems will be switched on
  • First days or weeks will be used to test the satellite and set it to work on full capacity.
  • Orienting the satellite so the on-board camera will be faced to earth
  • trying to take a picture of Estonia
  • Rotating the satellite on an axis with a speed of 1 revolution per second
  • E-sail element deployment from the satellite by a centrifugal force and confirming the deployment via the on-board camera
  • Activating the electron emitter and loading the e-sail
  • Measuring the e-sails and Lorentz force by satellites revolutions per second
  • If possible using the negatively charged e-sail to take the satellite off orbit and burn it in the earths atmosphere
  • If everything goes perfect the mission can be completed within a few weeks to a month
  • Lifespan of the satellite
  • Measurements and weight
  • Scientific purpose
  • Communicating with the satellite
  • held by two International Amateur Radio Unions three registered frequencies
  • Periodic but very slow communication is done on a telegraphic signal on a frequency of 437.250 MHz
  • the most important satellite parameters are transmitted every 3 to 5 minutes
  • For fast connections FSK-modulation radio signal on a frequency of 437.505 MHz with a 9600 baud connection speed and AX.25 standard is used.
  • Somewhat slow connection speed is caused by the usage of amateur radio frequencies which allow a maximum of 25 kiloherz bandwidth
  • Fast connection is used only when the satellite has been given a specific
  • Using the GFSK-modulation maximum possible connection speed is 19,200 bits per second
  • Software
  • FreeRTOS on the satellite's Command and Data Handling System and camera module
  • TinyOS on the satellite's communication module
  • Financing and costs
  • Cheapest possibility to send a satellite onto orbit is offered by European Space Agency. Because Estonia is an associated member of ESA most of the launch expenses (about 70,000 euros) will be covered from Estonian member fee for educational expenses. With the launch total expenses for the project are approximately 100,000 euros.
Mars Base

Soyuz Makes Record-Breaking 'Fast Track' to Space Station - 0 views

www.universetoday.com/...ng-fast-track-to-space-station

scibyte88 iss

shared by Mars Base on 29 Mar 13 - No Cached
  • The new abbreviated four-orbit rendezvous with the ISS uses a modified launch and docking profile for the Russian ships
  • It has been tried successfully with three Progress resupply vehicles, but this is the first time it has been used on a human flight.
  • In the past, Soyuz manned capsules and Progress supply ships were launched on trajectories that required about two days, or 34 orbits, to reach the ISS.
  • ...2 more annotations...
  • The new fast-track trajectory has the rocket launching shortly after the ISS passes overhead
  • Then, additional firings of the vehicle’s thrusters early in its mission expedites the time required for a Russian vehicle to reach the Station
Mars Base

New US-Russian Crew Docks at Space Station After Super-Fast Flight | Space.com - 0 views

www.space.com/ule-docking-space-station.html

scibyte88 iss

shared by Mars Base on 29 Mar 13 - No Cached
  • Before now, manned trips to the space station have taken at least two days, but with the docking of this ship just six hours after liftoff
Mars Base

An apple a day lowers level of blood chemical linked to hardening of the arteries - 0 views

medicalxpress.com/...day-lowers-blood-chemical.html

scibyte66 MedicalTreatment

shared by Mars Base on 03 Oct 12 - No Cached
  • In a study
  • consumption of one apple a day for four weeks lowered by 40 percent blood levels of a substance linked to hardening of the arteries.
  • Taking capsules containing polyphenols, a type of antioxidant found in apples, had a similar, but not as large, effect.
  • ...9 more annotations...
  • The study
  • , found that the apples lowered
  • "bad" cholesterol. When LDL
  • , the cholesterol is more likely to promote inflammation and can cause tissue damage.
  • tremendous effect against LDL being oxidized with just one apple a day for four weeks
  • difference was similar to that found between people with normal coronary arteries versus those with coronary artery disease
  • the polyphenol extract did register a measurable effect, but not as strong as the straight apple
  • could either be because there are other things in the apple that could contribute to the effect, or, in some cases, these bioactive compounds seem to get absorbed better when they're consumed in foods
  • eating apples had some effects on antioxidants in saliva, which has implications for dental health
Mars Base

Soyuz Spacecraft Docks at Space Station with New US-Russian Crew | Space.com - 0 views

www.space.com/space-station-docking-day.html

scibyte69 iss

shared by Mars Base on 26 Oct 12 - No Cached
  • 25 October 2012
  • Soyuz TMA-06M spacecraft docked at the space station's rooftop Poisk module at 8:29 a.m. EDT (1229 GMT)
  • two-day orbital chase
  • ...12 more annotations...
  • American astronaut Kevin Ford of NASA
  • Russian cosmonauts Oleg Novitskiy
  • Evgeny Tarelkin
  • stay until March
  • launched into space on Tuesday (Oct. 23
  • second half of the space station's six-person Expedition 33 crew
  • bringing some fishy friends to the space station
  • ferrying 32 small medaka fish to the space station so they can be placed inside a tank, called the Aquatic Habitat, for an experiment to study how fish adapt to weightlessness.
  • robotic Dragon space capsule
  • depart the space station on Sunday (Oct. 28)
  • will return nearly 2,000 pounds (907 kilograms) of science experiment hardware and other gear back to Earth.
  • Wednesday (Oct. 31), an unmanned Russian Progress spacecraft will launch toward the space station and arrive six hours later to make a Halloween delivery of food, equipment and other Halloween treats.
Mars Base

Delay Likely for SpaceX's Private Launch to Space Station | Space.com - 0 views

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

scibyte45 SpaceX iss PrivateSpaceTravel

shared by Mars Base on 03 May 12 - No Cached
  • : 02 May 2012
  • SpaceX was targeting the launch for Monday, May 7, but now will likely shift to a later date, possibly May 10
  • "At this time, a May 7th launch appears unlikely," SpaceX spokeswoman Kirstin Brost Grantham wrote in a statement. "SpaceX is continuing to work through the software assurance process with NASA. We will issue a statement as soon as a new launch target is set.
  • ...1 more annotation...
  • The flight was previously delayed from an April 30 launch date to allow more time for tests of Dragon's flight software. The new delay is also meant to allow for further checkouts.
Mars Base

Keeping immune cells alive and kicking - 0 views

phys.org/...012-05-immune-cells-alive.html

scibyte46 iss ImmuneSystem

shared by Mars Base on 09 May 12 - No Cached
  • Blood samples are frozen in the Space Station’s freezer for preservation before being returned to Earth for analysis
  • ROALD experiments are looking at why certain human cells replicate less in space
  • New results from research on the International Space Station are offering clues on why astronauts’ immune systems don’t work as well in space
  • ...12 more annotations...
  • discovered that a particular enzyme, called 5-LOX, becomes more active in weightlessness.  
  • 5-LOX enzyme in part regulates the life expectancy of human cells
  • Blood samples from two healthy donors were sent to the orbital outpost
  • One set was exposed to weightlessness for two days, while the other was held in a small centrifuge to simulate Earth-like gravity
  • samples were then frozen and sent back to Earth for analysis.
  • weightless samples showed more 5-LOX activity than the centrifuged samples
  • centrifuged samples remained identical to the ground samples
  • We now have a target enzyme
  • e 5-LOX enzyme can be blocked with existing drugs, so using these findings to improve human health could be a close reality
  • Research will continue
  • follow-up experiment returned to Earth in a Soyuz capsule with the Expedition 30 crew last week
  • Scientists will look for other changes in the cells to understand the underlying mechanisms fully.
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