Daily Archives: February 2, 2015

space station 13 shorts: self defense for blobs – Video

Posted: February 2, 2015 at 5:47 pm


space station 13 shorts: self defense for blobs
most badass blob thing i have ever done in ss13, IN SLOWMO!

By: Johannhawk

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space station 13 shorts: self defense for blobs - Video

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International Space Station Webcam – Video

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International Space Station Webcam
Just fooling around with a new program I got called Space Engine. -- Watch live at http://www.twitch.tv/trocarslushweasel Space Engine - http://en.spaceengine.org/ Music is "Solar Protuberance"...

By: TheSeasonedGamer

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International Space Station Webcam - Video

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Elite Dangerous – Imperial Clipper Docking Explosion – Video

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Elite Dangerous - Imperial Clipper Docking Explosion
While testing the AMD GVR recording software I managed to record this fireworks display inside Blaauw Hub. This a great example of why you should always request docking permission before you...

By: Matt Hawkins

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Elite Dangerous - Imperial Clipper Docking Explosion - Video

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Space Engineers Coop : Episode 3 : Space station – Video

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Space Engineers Coop : Episode 3 : Space station
Twitter - https://twitter.com/XTBHProductions FaceBook - https://www.facebook.com/XtbhProductions Thanks for Watching Don`t forget to leave a rating/subscribe Have a nice day !

By: xTBHProductions

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Space Engineers Coop : Episode 3 : Space station - Video

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Hour Glass Professor Glass FT GETAWAY [NASA] [SIRIUS/SPACECAM] – Video

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Hour Glass Professor Glass FT GETAWAY [NASA] [SIRIUS/SPACECAM]
Description: PROFESSOR GREEN: FT GETAWAY [FORT BLISS] MADE BY SIRIUS BOARD DIRECTOR[AND YOU TUBE SATELLITE SPACE DOCKING STATION SPACE SATELLITE:SPACE STATION ...

By: Johnson July

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Hour Glass Professor Glass FT GETAWAY [NASA] [SIRIUS/SPACECAM] - Video

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ISS SSTV with Diamond x30 – Video

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ISS SSTV with Diamond x30
Receiving the International Space Station ISS SSTV/beacon Signal 02.02.2015 1:15 UTC. Antenna Diamond X30. Signal 59+20.

By: Befriends Radio

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ISS Downlink Superbowl 2015 Message – Video

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ISS Downlink Superbowl 2015 Message
From aboard the International Space Station, Expedition 42 Commander Barry Wilmore and Flight Engineer Terry Virts, both of NASA took a break from the important scientific research being conducted.

By: NASA

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ISS Downlink Superbowl 2015 Message - Video

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NASAs CATS Installed On ISS By Robotic Handoff

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Mon, Feb 02, 2015

On Jan. 22, robotic flight controllers successfully installed NASAs Cloud Aerosol Transport System (CATS) aboard the International Space Station through a robotic handoff the first time one robotic arm on station has worked in concert with a second robotic arm. CATS will collect data about clouds, volcanic ash plumes and tiny airborne particles that can help improve our understanding of aerosol and cloud interactions and improve the accuracy of climate change models.

CATS had been mounted inside the SpaceX Dragon cargo crafts unpressurized trunk since it docked at the station on Jan. 12. Ground controllers at NASAs Johnson Space Center in Houston used one of the space stations robotic arms, called the Special Purpose Dexterous Manipulator, to extract the instrument from the capsule. The NASA-controlled arm passed the instrument to a second robotic arm like passing a baton in a relay race. This second arm, called the Japanese Experiment Module Remote Manipulator System, is controlled by the Japanese Aerospace Exploration Agency. The Japanese-controlled arm installed the instrument to the Space Stations Japanese Experiment Module, making CATS the first NASA-developed payload to fly on the Japanese module.

After installation, CATS was powered on and is currently sending health and status data back to NASAs Goddard Space Flight Center in Greenbelt, Maryland, where the instruments data will be analyzed, as the team begins their checkout procedures.

CATS is a lidar remote-sensing instrument designed to last from six months to three years. It is specifically intended to demonstrate a low-cost, streamlined approach to developing science payloads on the space station. CATS launched aboard the SpaceX Dragon spacecraft on Jan. 10 from Cape Canaveral Air Force Station in Florida.

(Image provided by NASA)

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Zebrafish flex their muscles for research aboard the International Space Station

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1 hour ago The Zebrafish Muscle study will observe the effects of microgravity aboard the International Space Station on the zebrafish. Credit: Sehara Lab

Although zebrafish are not deadlifting weights in orbit, they are helping researchers learn about muscle changes during their stay aboard the International Space Station. This impacts not only the fish, but also the crew and can have implications for Earth-related muscle challenges too. The Japan Aerospace Exploration Agency's (JAXA) Zebrafish Muscle investigation observes the effects of microgravity on the zebrafish, Danio rerio, a tropical freshwater fish belonging to the minnow family.

This research has the potential to lead to new drugs or treatments for patients on extended bed rest or with limited mobility. In addition to the potential human benefits, results from this study could aid researchers in developing countermeasures for muscle weakness in astronauts living in microgravity during extended missions.

"The main question of the Zebrafish Muscle experiment is whether atrophy of muscles under microgravity also occurs in fish, and why that muscle atrophy occurs in microgravity," explains Atsuko Sehara-Fujisawa, principal investigator and professor at Kyoto University in Kyoto, Japan.

Muscle atrophy is the wasting of muscle tissue. This occurs in microgravity since the muscles are not used to resist the force of gravity, as they would be on the ground. Astronauts mitigate this atrophy through prescribed daily exercise, yet some still lose bone and muscle mass during extended spaceflight.

In this investigation, the zebrafish is used as a model for comparison to larger organisms. Researchers use model organisms such as plants, animals or microbes like yeast to study the influence of microgravity on cells. Taking these organisms to space allows for examination of growth and development and physiological, psychological and aging processes without the impact of gravity. Previous observation of Medaka fish aboard the station monitored changes in bone impacted due to the microgravity environment.

Researchers study zebrafish because of their transparency compared to other fish. Scientists use transgenic zebrafish, which express fluorescence proteins inside the body to obtain three dimensional imaging of skeletal muscle and tendon tissues within the zebrafish. This means that the zebrafish contain DNA that is inserted experimentally. Furthermore, the availability of whole genome sequencing in zebrafish makes it an essential organism to study. This reveals the genetic characteristics of an organism with a precision that other technologies cannot match.

This investigation employs the station's Aquatic Habitat, an aquarium in microgravity. An LED light fixed to the top of the habitat illuminates the study for recording and simulates the sun's light on the surface of the water. The fish use their instinctual response to this light and swim in a position similar to upright on Earth. View the zebrafish swimming and eating during their spaceflight of more than 21 days on the space station in these JAXA videos.

A total of 18 zebrafish were launched to the space station. Five fish returned alive on a previous Soyuz spacecraft and some chemically preserved fish will be returned with the completion of the fifth SpaceX commercial resupply mission. The Zebrafish Muscle research team will compare gene expression - the process of determining a cell's function - profiles between fish flown in space and control fish on Earth. Specifically, they will look to see if fish muscle deteriorates in space and recovers upon return to the ground. The team also will examine if fish tendon is sensitive to microgravity.

"We hope that this research enables us to understand how microgravity affects muscle mass and strength in terms of genes and molecules and what kinds of molecular mechanisms contribute to the recovery of muscle after the exposure in microgravity," said Sehara-Fujisawa. "This research should clarify whether physical exercise and anti-gravity reactions share common gene regulation. It would be wonderful if this research gave us hints to ameliorate muscle atrophy due to aging or diseases."

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A STAR is born: Engineers devise genetic 'on' switch

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All life processes depend on genes turning on and off. Cornell scientists have created a new on switch to control gene expression a breakthrough that could revolutionize genetic engineering.

Synthetic biologists led by Julius Lucks, assistant professor of chemical and biomolecular engineering, have created a new genetic control mechanism made exclusively of ribonucleic acids (RNA). They call their engineered RNAs STARS Small Transcription Activating RNAs described online in Nature Chemical Biology, Feb. 2.

Weve created a whole new toolset of regulation, said Lucks, who describes RNA as the most engineerable molecule on the planet.

RNA is a single-stranded version of its close cousin, DNA, which makes up the double-stranded genome of all living organisms. While DNA acts as natures hard drive, storing the genes that make up our genome, RNA is part of the cellular computer that activates the hard drive by helping the cell tune the expression of specific genes, Lucks says. While RNA is known to do this in many ways, one thing it cant do in nature is start the process by turning on, or activating, transcription the first step in gene expression, and the core of many cellular programs.

In the lab, Lucks and colleagues have assigned RNA this new role. Theyve engineered an RNA system that acts like a genetic switch, in which RNA tells the cell to activate the transcription of a specific gene. The STAR system involves placing a special RNA sequence upstream of a target gene that acts as a blockade and prevents the cell from transcribing that gene. When the STAR is present, it removes this blockade, turning on the downstream gene by allowing transcription to take place. The effect is like a lock-and-key system for turning genes on, with STARs acting as a set of genetic keys for unlocking cellular genetic programs.

RNA is like a molecular puzzle, a crazy Rubiks cube that has to be unlocked in order to do different things, Lucks said. Weve figured out how to design another RNA that unlocks part of that puzzle. The STAR is the key to that lock.

RNA is Lucks favorite molecule because its simple much simpler than a protein and its function can be engineered by designing its structure. In fact, new experimental and computational technologies, some developed by Lucks lab, are now giving quick access to their structures and functions, enabling a new era of biomolecular design that is much more difficult to do with proteins.

Lucks envisions RNA-only, LEGO-like genetic circuits that can act as cellular computers. RNA-engineered gene networks could also offer diagnostic capabilities, as similar RNA circuits have been shown to activate a gene only if, for example, a certain virus is present.

This is going to open up a whole set of possibilities for us, because RNA molecules make decisions and compute information really well, and they detect things really well, Lucks said.

The paper is called Creating Small Transcription Activating RNAs, and its co-authors are postdoctoral associate James Chappell and graduate student Melissa Takahashi. Supporters include the National Science Foundation, the Defense Advanced Research Projects Agency and the Office of Naval Research.

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