Alpha Centauri 2

Community => Recreation Commons => Destination: Alpha Centauri => Topic started by: Buster's Uncle on December 05, 2017, 06:01:07 PM

Title: NASA's James Webb Space Telescope Emerges from Giant Vacuum Chamber
Post by: Buster's Uncle on December 05, 2017, 06:01:07 PM

NASA's James Webb Space Telescope Emerges from Giant Vacuum Chamber
Space.com
By Tariq Malik, Space.com Managing Editor |  December 4, 2017 06:40pm ET


(https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA3Mi8yNDQvb3JpZ2luYWwvbmFzYS1qd3N0LWNoYW1iZXItYS1lbWVyZ2VzLTIuanBn)
NASA engineers pose with the James Webb Space Telescope shortly after its emergence from Chamber A, a giant vacuum chamber at the Johnson Space Center in Houston, on Dec. 1, 2017.  Credit: NASA/Chris Gunn

 

Part of NASA's next major observatory – the James Webb Space Telescope – just left a thermal vacuum chamber after about 100 days of cryogenic testing to prepare it for launch in 2019.

For more than three months, the science instruments and optical element from the $8.8-billion observatory lived inside a chamber at NASA's Johnson Space Center in Houston. In a chamber called Johnson A, technicians put the telescope equipment through its paces. The goal was to make sure JWST can work in the cold, airless environment of space.

With testing complete, NASA will study the results even as engineers prepare to put the telescope together, agency officials said in a statement. But that will require a move from Houston to Redondo Beach, California. Once the parts arrive at the Northrop Grumman Aerospace Systems facility there, the instruments and optics will be put together with the sunshield and spacecraft bus – completing the telescope's assembly.

JWST will launch in spring 2019 from a European spaceport in French Guiana; in late September, NASA once again pushed back its expected launch date, due to integration issues. After launch, the telescope will journey to the sun-Earth Lagrange point 2, which is a gravitationally stable location 930,000 miles (1.5 million kilometers) from Earth.


(https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA3Mi8yNDIvb3JpZ2luYWwvbmFzYS1qd3N0LWNoYW1iZXItYS1lbWVyZ2VzLmpwZz8xNTEyNDI5MDY0)
NASA's James Webb Space Telescope emerges from Chamber A at the Johnson Space Center in Houston on Dec. 1, 2017.  Credit: NASA/Chris Gunn

 
The telescope will operate in infrared wavelengths and like its predecessor the Hubble Space Telescope, will have plenty of different science work to keep it busy. Some of JWST's missions include looking at the universe's first light, examining exoplanets and figuring out how galaxies assembled early in the universe's history.

You can see the James Webb Space Telescope live here (https://jwst.nasa.gov/webcam.html#cam2Large) via NASA's Webb Cam camera.


https://www.space.com/38978-james-webb-space-telescope-vacuum-test-chamber.html (https://www.space.com/38978-james-webb-space-telescope-vacuum-test-chamber.html)

Title: Re: NASA's James Webb Space Telescope Emerges from Giant Vacuum Chamber
Post by: Unorthodox on December 06, 2017, 03:59:48 PM

I haven't looked up how this is launching, but I guarantee that thing won't launch on a Falcon 9.  And likely wouldn't on a Falcon Heavy. 

That article claiming the big expensive delicate satellites and launch systems for them aren't needed anymore a week or so back...yeah, pay attention.  No way they'd put this on a falcon, because that still doesn't transport to the launch pad in the upright position. 

Title: Re: NASA's James Webb Space Telescope Emerges from Giant Vacuum Chamber
Post by: Lorizael on December 06, 2017, 07:29:06 PM

Quote from: Unorthodox on December 06, 2017, 03:59:48 PM

I haven't looked up how this is launching, but I guarantee that thing won't launch on a Falcon 9.  And likely wouldn't on a Falcon Heavy. 

That article claiming the big expensive delicate satellites and launch systems for them aren't needed anymore a week or so back...yeah, pay attention.  No way they'd put this on a falcon, because that still doesn't transport to the launch pad in the upright position.

It's going up on an Ariane 5 rocket and will be folded together to fit.

Title: Re: NASA's James Webb Space Telescope Emerges from Giant Vacuum Chamber
Post by: Unorthodox on December 06, 2017, 10:25:40 PM

It would be folded no matter what it was going on.