SPACE: WHERE ARE WE GOING? : ROCKET PROPULSION ENGINE

Friday, December 9, 2011

SPACE FIRM TO TEST ENGINE AT NASA SITE

The following excerpt is from the NASA website:

"NASA Deputy Administrator Garver Tours Blue Origin; Announces Commercial Space Firm's April Engine Testing At NASA Stennis

WASHINGTON -- NASA Deputy Administrator Lori Garver is visiting Blue Origin in Kent, Wash., today. The company is one of NASA's commercial partners opening a new chapter in human exploration by developing innovative systems to reach low Earth orbit as part of the Commercial Crew Development Program.

"Blue Origin is creating cutting edge technologies to take us to low Earth orbit," Garver said. "Like all of our commercial partners, they're making real progress and opening up a new job-creating segment of the economy that will allow NASA to focus on our next big challenges -- missions to asteroids and Mars."

Garver also announced Blue Origin has delivered its BE-3 engine thrust chamber assembly -- the engine's combustion chamber and nozzle -- to NASA's Stennis Space Center in Mississippi, where testing will begin in April 2012. The company is developing a reusable launch vehicle, designed to take off and land vertically, and an escape system for its crewed spacecraft. Testing will take place on the center's E-1 Test Stand.

"We're delighted Blue Origin is taking advantage of Stennis, a center with a long record of propulsion testing from the dawn of the Space Age, to test the rocket engines of the future," Garver said.

"We appreciate the opportunity to work with the depth of expertise and utilize the facilities at Stennis for our engine testing, and are glad to have the test hardware onsite and ready to go," said Rob Meyerson, president and program manager at Blue Origin.

STAR FLASH

What caused this outburst of V838 Mon? For reasons unknown, star V838 Mon's outer surface suddenly greatly expanded with the result that it became the brightest star in the entire Milky Way Galaxy in January 2002. Then, just as suddenly, it faded. A stellar flash like this had never been seen before -- supernovas and novas expel matter out into space. Although the V838 Mon flash appears to expel material into space, what is seen in the above image from the Hubble Space Telescope is actually an outwardly moving light echo of the bright flash. In a light echo, light from the flash is reflected by successively more distant rings in the complex array of ambient interstellar dust that already surrounded the star. V838 Mon lies about 20,000 light years away toward the constellation of the unicorn (Monoceros), while the light echo above spans about six light years in diameter. Image Credit: NASA, ESA

THE SPIDERWEB GALAXY

Looking like a spider's web swirled into a spiral, Galaxy IC 342 presents its delicate pattern of dust in this image from NASA's Spitzer Space Telescope. Seen in infrared light, faint starlight gives way to the glowing bright patterns of dust found throughout the galaxy's disk. At a distance of about 10 million light-years, IC 342 is relatively close by galactic standards, however our vantage point places it directly behind the disk of our own Milky Way. The intervening dust makes it difficult to see in visible light, but infrared light penetrates this veil easily. IC 342 belongs to the same group as its even more obscured galactic neighbor, Maffei 2. IC 342 is nearly face-on to our view, giving a clear, top-down view of the structure of its disk. It has a low surface brightness compared to other spirals, indicating a lower density of stars (seen here as a blue haze). Its dust structures show up much more vividly (red). Blue dots are stars closer to us, in our own Milky Way. New stars are forming in the disk at a healthy rate. The very center glows especially brightly in the infrared, highlighting an enormous burst of star formation occurring in this tiny region. To either side of the center, a small bar of dust and gas is helping to fuel this central star formation. Data from Spitzer's infrared array camera are shown in blue (3.6 microns), green (4.5 microns) and red (5.8 and 8.0 microns). Image Credit: NASA/JPL-Caltech

JUMPING TO WARP SPEED

This cockpit view of a hypothetical spacecraft traveling at eight-tenths the speed of light shows the visual distortions that would be experienced at such high speeds. The star field is actually being wrapped toward the front of the craft in addition to being significantly blue-shifted. NASA Glenn leads the Breakthrough Propulsion Physics Project, NASA's primary effort to produce near-term, credible, and measurable progress toward the technology breakthroughs needed to revolutionize space travel and enable interstellar voyages. NASA Lewis (now Glenn) Research Center, Cleveland, Ohio.

OBSERVATION FROM THE SPACE STATION