Category Archives: Space Station

Endothelial cells
(L-144 days) With less than six months to his launch to the International Space Station, ESA astronaut Andreas Mogensen is at the European Astronaut Centre in Cologne, Germany, where he is...

By: European Space Agency, ESA

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Endothelial cells - Video

Yuri #39;s Night Greetings from Samantha Cristoforetti
Italian Astronaut Samantha Cristoforetti, who is on the ESA Futura mission onboard the International Space Station, sends her greetings to Yuri #39;s Night events around the world that are planned...

By: Yuri #39;s Night

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Yuri's Night Greetings from Samantha Cristoforetti - Video

LichCraft Space Toilet
This is the space toilet on the N.S.S (NASA Space Station) at /Warp NSS on the LichCraft Survival server. This was built just below build cap. You can flush yourself down through the space...

By: MikeCraftin

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LichCraft Space Toilet - Video

International Space Station Timelapse for Thu, 9th April 2015 UTC
This is a image taken from the live feed from the International Space Station (ISS).

By: dingo001

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International Space Station Timelapse for Thu, 9th April 2015 UTC - Video

Learning Resources Space Station Set
Learning Resources Space Station Set Product Feature * * * * Product Description This 11-piece play set takes children on a fascinating adventure that #39;s out of this world! Includes...

By: ani

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Learning Resources Space Station Set - Video

Space to Ground: Eye on the Earth: 4/10/15
NASA #39;s Space to Ground is your weekly update on what #39;s happening aboard the International Space Station. Got a question or comment? Use #spacetoground to talk to us.

By: ReelNASA

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Space to Ground: Eye on the Earth: 4/10/15 - Video

The Spatials (Gameplay) - Collecting Slime - Part 4
Today Brbteabreak plays The Spatials, an "Indie Tycoon RPG Simulation Resource Management set in Space" We start up our space station and try to work out what #39;s going on. Don #39;t worry we work...

By: BrbteabreakTV

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The Spatials (Gameplay) - Collecting Slime - Part 4 - Video

FIRST LOOK REDUX | Space Station Alpha #2
I tried to do a better version of the original first look video, but started getting my butt kicked by asteroids, fires, and finally a bug with my worker bots finished off the video. Nuclear...

By: Penguin Stu

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FIRST LOOK REDUX | Space Station Alpha #2 - Video

IMAGE:This is a close-up of mouse osteocytes within the bone. view more

Credit: Dr. L Bonewald

Researchers may be "excyted" to learn that osteocyte cultures are headed to the International Space Station this spring for the first time. With their delivery on the next SpaceX commercial resupply services mission this month, the Osteocytes and mechano-transduction (Osteo-4) investigation team will analyze the effects of microgravity on this type of bone cell. Understanding these effects will be critical as astronauts plan for future missions that require longer exposure to microgravity, such as to deep space or Mars. The results derived from this study could also have implications for patients on Earth in the treatment of bone disorders related to disuse or immobilization, as well as metabolic diseases such as osteoporosis.

"We are investigating how osteocytes - the most abundant cells in the adult skeleton - both sense and respond to changes in mechanical forces, as achieved aboard the space station," said National Institutes of Health (NIH) grantee Paola Divieti Pajevic, M.D., Ph.D., principal investigator of the Osteo-4 study and associate professor at the Goldman School of Dental Medicine at Boston University.

Through previous spaceflight studies, some crew members have shown a loss of bone mass after long-duration missions in space. Divieti Pajevic's team examines the function and behavior of isolated osteocytes in microgravity to determine how they may contribute to the observed decline in crew member bone density.

Osteocytes are the cells that sense mechanical forces, like weight-lifting, as they are applied to the skeleton. They transform these forces into biological responses, signaling other cells to make or remove bone.

"If we can figure out bone loss in the extreme conditions of space, we could figure out how to make more bone or counteract bone loss in astronauts," said Divieti Pajevic. "This has applications to millions of people on Earth who are affected by osteoporosis and related fractures."

Divieti Pajevic's research team uses samples from a specific line of bone cells from mice that mimic human bone osteocytes in gene expression. Gene expression is the process in which information programmed in a gene is used to direct the assembly of a protein molecule, which then helps carry out the instructions given to the cell for its role. The team will try to isolate the genetic signals changed in the cells once exposed to microgravity.

During the Osteo-4 study, the osteocytes are grown in a synthetic, tissue-like, three-dimensional structure and housed inside bioreactors. Bioreactors are containers used to allow the cells to grow in a protected environment. Three trays each house three individual bioreactors, creating a total of nine samples for study on the space station.

Once the samples have arrived in space and are exposed to microgravity, astronauts will freeze the cells at intervals of three, five and seven or eight days. Freezing the osteocytes will stop changes in the cells and allow the researchers to look at the differences at early and later stages of exposure to microgravity. The frozen samples will return to Earth aboard the SpaceX Dragon for further examination.

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Scientists make no bones about first study of osteocyte cultures on Space Station

SpaceX will try again to make history during the launch of its robotic Dragon cargo capsule to the International Space Station on Monday.

The company aims to bring the first stage of its Falcon 9 rocket back to Earth for a soft touchdown on an unmanned "spaceport drone ship" in the Atlantic Ocean after the booster sends Dragon on its way toward the orbiting lab. Liftoff is scheduled for 4:33 p.m. EDT (2033 GMT) Monday from Florida's Cape Canaveral Air Force Station; you can watch all the action live at Space.com, courtesy of NASA TV.

SpaceX attempted the same reusable-rocket maneuver during the last Dragon cargo launch, which occurred in January, and very nearly pulled it off: The Falcon 9 first stage succeeded in hitting the drone ship but came in a bit too hard and exploded on the deck. [SpaceX's Reusable Rocket Landing Test Explained (Infographic)]

The rocket stage's stabilizing "hypersonic grid fins" ran out of hydraulic fluid, SpaceX founder and CEO Elon Musk said after the Jan. 10 try. He vowed to fix that particular issue in time for the next attempt.

The next booster to come down for a drone-ship landing will have "way more hydraulic fluid," Musk tweeted on Jan. 16. "At least it shd explode for a diff reason."

The autonomous drone ship, incidentally, is named "Just Read the Instructions," after a sentient colony vessel from the sci-fi novels of Iain M. Banks.

Monday's test is part of SpaceX's effort to develop fully and rapidly reusable rockets. Such technology could slash the cost of spaceflight by a factor of 100, helping open the heavens to exploration, Musk has said.

The main mission on Monday, however, is to get Dragon and the 4,387 lbs. (2,015 kilograms) of food, supplies and scientific experiments that it's toting on course to the space station. The launch will initiate the sixth of 12 cargo missions that SpaceX is flying to the orbiting lab under a $1.6 billion NASA contract.

If all goes according to plan, Dragon will arrive at the station on Wednesday (April 15). The spacecraft will spend about five weeks attached to the $100 billion complex before coming back down to Earth with 3,020 lbs. (1,370 kg) of science gear, hardware and trash.

The capsule will splash down in the Pacific Ocean, then be retrieved by recovery crews via boat. (Dragon is the only cargo vessel flying today capable of bringing supplies back to Earth; the others are all designed to burn up in Earth's atmosphere.)

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SpaceX Preps for Daring Rocket Launch Again