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NASA TV's This Week @NASA, August 6
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This Week at NASA…
JOINT MISSIONS TO MARS – HQ
NASA and the European Space Agency (ESA) have joined forces and resources to explore the Red Planet.
Dr. Ed Weiler: "Recognizing missions cost a lot more to do the best science and, the economic situation isn’t the best it could be; it’s’ time for us to stop competing with our major partners, like the Europeans, and start working together."
In three separate robotic missions, the partner agencies will study the possibility of past life on the Red Planet as well as test communications relays and explore other geochemical and biological mysteries. The first, in 2016, will search for trace gases in the Martian atmosphere that could indicate the existence of life on the Red Planet. A second, in 2018, will send two rovers to the Martian surface. Both missions will lead the way for a third in the following decade that’ll return to Earth a sample taken from the Martian surface.
Doug McCuistion: "The driving reason behind an ESA/NASA collaboration is the to build our capabilities to return sample from Mars in the 2020s (cut to) We call it a campaign because it could cover 2, or maybe three launch ops to be able to be able to set the infrastructure on the surface of the planet, get the samples back off the of the planet and return them to Earth safely."
ATHLETE’S STRETCH RUN - JPL
Engineers at the Jet Propulsion Laboratory are getting their ATHLETE some exercise. ATHLETE, for All-Terrain, Hex-Limbed, Extra-Terrestrial Explorer, is a working prototype of a robotic rover that can transport habitats and other cargo on the surface of the moon or Mars. The half-scale vehicle that stands 15 feet tall has been stretching its six legs on a series of extended-drive tests on the long, dirt roads adjacent to JPL.
Julie Townsend: "The ATHLETE is actually programmed to adjust the height of each leg so that it keeps and equal amount of weight on each wheel. And so that means that as its going over small hills, through rolling terrain, it will actually conform to the hills and valleys then make sure that the robots always have an equal amount of force on each tire. For rougher terrain, like if there’s lots of obstacles like rock, or it gets really loose and sandy, and really steep, an ATHLETE can actually start walking."
The engineers want to test ATHLETE’s ability to meet a NASA milestone of traveling at least 25 miles under its own power in 14 days or less. The robot’s top speed is about a mile-and-a-quarter an hour. The official demonstration is slated to begin next month during NASA’s D-RATS, or Desert Research and Technology Studies tests in remote northern Arizona.
WHEN GALAXIES COLLIDE - CXC
This new composite image from the Chandra X-ray Observatory, the Hubble Space Telescope, and the Spitzer Space Telescope shows two colliding galaxies more than a 100 million years after they first impacted each other. The continuing collision of the Antennae galaxies, located about 62 million light years from Earth, has triggered the formation of millions of stars in clouds of dusts and gas in the galaxies. The X-ray image from Chandra shows huge clouds of hot, interstellar gas that have been injected with rich deposits of elements from supernova explosions. This enriched gas, which includes elements such as oxygen, iron, magnesium and silicon, will one day be incorporated into new generations of stars and planets.
STUDENTS CONDUCT FLIGHT TESTS – DFRC
A half-dozen students participating in NASA’s INSPIRE summer internship program at the Dryden Flight Research Center are learning first-hand about the start-to-finish lifecycle of flight testing experimental aircraft.
The students worked in teams to flight test a large remote-controlled model airplane. (nat) They analyzed the performance of the aircraft using data collected on those flights. (nat) NASA’s INSPIRE provides future engineers with project experience prior to entering their senior year in high school or their first semester of college.
NASA Anniversary: ECHO 1 LAUNCH, August 12, 1960
50 years ago, NASA launched its first communications satellite, Echo 1. Made from mylar polyester film and measuring about 100 feet across, the balloon-shaped spacecraft was designed as a passive communications reflector for transcontinental and intercontinental telephone, radio, and television signals. During orbit, a special recorded message from President Dwight Eisenhower was bounced off Echo 1 and picked up by radio operators across the nation.
Dwight Eisenhower: "This is President Eisenhower speaking. It is a great personal satisfaction to participate in this first experiment in communications."
ECHO 1 re-entered the atmosphere on May 24, 1968.
NASA Anniversary: MRO LAUNCH, August 12, 2005
Launch Announcer: "Ignition and liftoff of the Atlas V rocket with MRO."
Five years ago, NASA's Mars Reconnaissance Orbiter was launched in search of evidence that water persisted on the surface of Mars over a prolonged period of time. Previous Mars missions indicated that, at some point in the Red Planet’s history, water flowed across its surface. Throughout the years, the MRO has continued to analyze minerals, look for water, trace the distribution of dust in the atmosphere and monitor the Martian weather.
And that's This Week at NASA!
For more on these and other stories, log onto: www.nasa.gov
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