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Virgin Galactic completes third test flight of SpaceShipTwo


PF03_SS2_Burn.jpg


10.01.2014

MOJAVE, Calif. – Today, Virgin Galactic, the world’s first commercial spaceline, which is owned by Sir Richard Branson’s Virgin Group and Abu Dhabi’s aabar Investments PJS, successfully completed the third rocket-powered supersonic flight of its passenger carrying reusable space vehicle, SpaceShipTwo (SS2). In command on the flight deck of SS2 for the first time under rocket power was Virgin Galactic’s Chief Pilot Dave Mackay. Mackay, along with Scaled Composites’ (Scaled) Test Pilot Mark Stucky, tested the spaceship’s Reaction Control System (RCS) and the newly installed thermal protection coating on the vehicle’s tail booms. All of the test objectives were successfully completed.

Today’s flight departed Mojave Air and Space Port at 7:22 a.m. PST with the first stage consisting of the WhiteKnightTwo (WK2) carrier aircraft lifting SS2 to an altitude around 46,000 ft. At the controls of WK2 were Virgin Galactic Pilot Mike Masucci and Scaled Test Pilot Mike Alsbury. On release, SS2’s rocket motor was ignited, powering the spaceship to a planned altitude of 71,000 ft. – SS2’s highest altitude to date – and at a maximum speed of Mach 1.4. SS2’s unique feather re-entry system was also tested during today’s flight.

Two important SS2 systems, the RCS and thermal protection coating, were tested during today’s flight in preparation for upcoming full space flights. The spaceship’s RCS will allow its pilots to maneuver the vehicle in space, permitting an optimal viewing experience for those on board and aiding the positioning process for spacecraft re-entry. The new reflective protection coating on SS2’s inner tail boom surfaces is being evaluated to help maintain vehicle skin temperatures while the rocket motor is firing.

read on:
http://www.virgingalactic.com/news/item/virgin-galactic-reaches-new-heights-in-third-supersonic-test-flight/
 
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Rosetta's journey from launch in March 2004 to comet 67P/Churyumov-Gerasimenko in August 2014, including 3 flybys of Earth and 1 of Mars. By January 2014 Rosetta is about 9 million kilometres from comet 67P/CG. By early May, Rosetta will be 2 million kilometres from the comet and at the end of May the spacecraft will execute a major rendezvous manoeuvre to line it up for orbit insertion at the start of August.


After a ten year journey through space, ESA's Rosetta spacecraft will reach comet 67P/Churyumov-Gerasimenko in August 2014. After catching up On with the comet Rosetta will slightly overtake and enter orbit from the 'front' of the comet as both the spacecraft and 67P/CG move along their orbits around the Sun. Rosetta will carry out a complex series of manoeuvres to reduce the separation between the spacecraft and comet from around 100 km to 25-30 km. From this close orbit, detailed mapping will allow scientists to determine the landing site for the mission's Philae lander. Immediately prior to the deployment of Philae in November, Rosetta will come to within just 2.5 km of the comet's nucleus.
This animation is not to scale; Rosetta's solar arrays span 32 m, and the comet is approximately 4 km wide.

On the 20th January, after 957 days of hibernation in deep space, ESA’s Rosetta spacecraft is set to wake up automatically. The journey started in 1994.

More:

http://www.esa.int/Our_Activities/Space_Science/Rosetta/Europe_s_comet_chaser
 
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