STS-134 Crew Begin TCDT at Kennedy

Space shuttle Endeavour's six astronauts arrived at NASA Kennedy Space Center's Shuttle Landing Facility in four T-38 jets between 5:07 p.m. and 5:24 p.m. EDT. The crew is at Kennedy for their week-long launch dress rehearsal, called the Terminal Countdown Demonstration Test, or TCDT. TCDT will provide Endeavour's astronauts and ground crews with an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training.

Later today STS-134 Commander Mark Kelly and Pilot Greg H. Johnson will practice shuttle landings in shuttle training aircraft. The next media event will be a Q and A at Launch Pad 39A on March 31 at 8:40 am. EDT The event will be aired on NASA TV. Launch of Endeavour on the STS-134 mission to the International Space Station is targeted for 7:48 p.m. EDT April 19. During the 14-day mission, Endeavour will deliver the Alpha Magnetic Spectrometer (AMS) and spare parts including two S-band communications antennas, a high-pressure gas tank, additional spare parts for Dextre and micrometeoroid debris shields.

Endeavour Payload Scheduled for Friday Installation-NASA information

This week at NASA's Kennedy Space Center in Florida, crews at Launch Pad 39A continue preparations to install the payload into space shuttle Endeavour's cargo bay. After the rotating service structure was extended yesterday morning, the payload changeout room main doors and Endeavour's payload bay doors were opened, allowing access for spacecraft and payload inspections. Installation of the payload is scheduled for Friday.

Space shuttle program managers, STS-134 mission managers and Endeavour's six astronauts will hold preflight briefings today from NASA's Johnson Space Center in Texas. Launch of Endeavour on the STS-134 mission to the International Space Station is targeted for 7:48 p.m. EDT April 19.

Techs to Perform Payload and Spacecraft Inspections

Launch Pad 39A crews at NASA's Kennedy Space Center in Florida are preparing for the payload installation into space shuttle Endeavour's cargo bay scheduled . Today, technicians will open the payload bay doors and perform inspections on the spacecraft and payload. Meanwhile, the STS-134 crew will practice flying techniques in their T-38 training aircraft today at NASA's Johnson Space Center in Houston. Launch of Endeavour on the STS-134 mission to the International Space Station is targeted for 7:48 p.m. EDT April 19. During the 14-day mission, Endeavour will deliver the Alpha Magnetic Spectrometer (AMS) and spare parts including two S-band communications antennas, a high-pressure gas tank, additional spare parts for Dextre and micrometeoroid debris shields.

Students Get Fit the Astronaut Way-NASA Information

When you think of NASA, likely you picture the space shuttle, the International Space Station, or have images of planets and galaxies flashing before your mind's eye. NASA's Mission X: Train Like an Astronaut, however, focuses a little closer to home. Working with the schools in our very own neighborhoods and around the world, Mission X uses the same skills used to train astronauts to motivate physical education for around 3,700 students in 40 cities around the globe.
The brainchild of the International Space Life Science Working Group or ISLSWG and the Human Research Program Education and Outreach or HRPEO, Mission X launched in U.S. schools on Jan. 18, 2010. NASA's Human Research Program funded the pilot program, including activity and educational modules and an interactive Website. The program is available in six different languages for participants in 10 countries U.S., Netherlands, Italy, France, Germany, Japan, Australia, Columbia, Spain, and the United Kingdom. The goal of the program is to make kinesiology and nutrition fun for children by encouraging them to train like an astronaut.



Chuck Lloyd, the NASA program manager responsible for the project, comments on how the space program excites students, prompting active participation. "Mission X is all about inspiring and educating our youth about living a healthy lifestyle with a focus on improving their overall daily physical activity with the Mission X physical activities, known as train-like-an-astronaut."
Students aging from 8- to 12-years-old learn about the science behind their activities, including the importance of hydration, bone health, and balanced nutrition. Known as "fit explorers," these youth stay motivated with fun ways to gauge their success. For instance, they can see what other schools are doing on the Train Like An Astronaut blog. Fit explorers logged their accumulated activity points over the course of the program to help an online cartoon astronaut, known as Flat Charlie, walk to the moon.. Flat Charlie made the moon five weeks in to the competition -- a distance of 238,857 miles(384,403 km) or 478 million steps and he's still going!

NASA's Hubble Rules Out One Alternative to Dark Energy

Astronomers using NASA's Hubble Space Telescope have ruled out an alternate theory on the nature of dark energy after recalculating the expansion rate of the universe to unprecedented accuracy.

The universe appears to be expanding at an increasing rate. Some believe that is because the universe is filled with a dark energy that works in the opposite way of gravity. One alternative to that hypothesis is that an enormous bubble of relatively empty space eight billion light-years across surrounds our galactic neighborhood. If we lived near the center of this void, observations of galaxies being pushed away from each other at accelerating speeds would be an illusion.

This hypothesis has been invalidated because astronomers have refined their understanding of the universe's present expansion rate. Adam Riess of the Space Telescope Science Institute (STScI) and Johns Hopkins University in Baltimore, Md., led the research. The Hubble observations were conducted by the SHOES (Supernova Ho for the Equation of State) team that works to refine the accuracy of the Hubble constant to a precision that allows for a better characterization of dark energy's behavior. The observations helped determine a figure for the universe's current expansion rate to an uncertainty of just 3.3 percent. The new measurement reduces the error margin by 30 percent over Hubble's previous best measurement of 2009. Riess' results appear in the April 1 issue of The Astrophysical Journal.