XCLUB-COOL STUFF AROUND YOU

标题: [tech-Space] All You Need to Know About The World's Most Powerful Telescope [打印本页]

作者: Dhyann 时间: 2019-04-05 22:07
标题: [tech-Space] All You Need to Know About The World's Most Powerful Telescope
[p style="text-align: center;"]NASA's James Webb Space Telescope, scheduled for launch in 2021, will probe the cosmos to uncover the history of the universe from the Big Bang to alien planet formation and beyond.

[p] (, 下载次数: 1) [br]

[p]It will focus on four main areas: first light in the universe, assembly of galaxies in the early universe, birth of stars and protoplanetary systems, and planets (including the origins of life.)

[p] The James Webb Space Telescope (JWST) will launch on an [span style="font-weight: bold;"]Ariane 5[/span] rocket from French Guiana, then take 30 days to fly a million miles to its permanent home: a Lagrange point, or a gravitationally stable location in space.

[p] (, 下载次数: 0) [br]

[p] It will orbit around L2, a spot in space near Earth that lies opposite from the sun. This has been a popular spot for several other space telescopes, including the Herschel Space Telescope and the Planck Space Observatory.

The powerful $8.8 billion spacecraft is also expected to take amazing photos of celestial objects like its predecessor, the Hubble Space Telescope.

[p] Luckily for astronomers, the Hubble Space Telescope remains in good health and it's probable that the two telescopes will work together for JWST's first years. JWST will also look at exoplanets that the Kepler Space Telescope found, or follow up on real-time observations from ground space telescopes.

[h2 id="instruments-on-board"]Instruments on board[/h2][p]The JWST will come equipped with four science instruments.

[h3][span style="text-decoration-line: underline; font-style: italic;"]1--Near-Infrared Camera (NIRCam)[/span][/h3][p style="text-align: center;"] (, 下载次数: 0) [br]

[p] Provided by the University of Arizona, this infrared camera will detect light from stars in nearby galaxies and stars within the Milky Way. It will also search for light from stars and galaxies that formed early in the universe's life. NIRCam will be outfitted with coronagraphs that can block a bright object's light, making dimmer objects near those stars (like planets) visible.

[h3]2--[span style="font-style: italic; text-decoration-line: underline;"]Near-Infrared Spectrograph (NIRSpec)[/span][/h3][p style="text-align: center;"] (, 下载次数: 0) [br]

[p] NIRSpec will observe 100 objects simultaneously, searching for the first galaxies that formed after the Big Bang. NIRSpec was provided by the European Space Agency with help from NASA's Goddard Space Flight Center.

[h3]3-- [span style="font-style: italic; text-decoration-line: underline;"]Mid-Infrared Instrument (MIRI)[/span][/h3][div style="text-align: center;"] (, 下载次数: 0) [span style="font-style: italic; text-decoration-line: underline;"][br][/span][/div][p] MIRI will produce amazing space photos of distant celestial objects, following in Hubble's tradition of astrophotography. The spectrograph that is a part of the instrument will allow scientists to gather more physical details about distant objects in the universe. MIRI will detect distant galaxies, faint comets, forming stars and objects in the Kuiper Belt. MIRI was built by the European Consortium with the European Space Agency and NASA's Jet Propulsion Laboratory.

[h3]4--[span style="text-decoration-line: underline; font-style: italic;"]Fine Guidance Sensor/Near InfraRed Imager and Slitless Spectrograph (FGS/NIRISS)[/span][/h3][div] (, 下载次数: 1) [span style="text-decoration-line: underline; font-style: italic;"][br][/span][/div][p] This Canadian Space Agency-built instrument is more like two instruments in one. The FGS component is responsible for keeping the JWST pointed in exactly the right direction during its science investigations. NIRISS will scope out the cosmos to find signatures of the first light in the universe and seek out and characterize alien planets.

[p style="text-align: center;"] (, 下载次数: 0) [br]

[p]The telescope will also sport a tennis court-size sunshield and a 21.3-foot (6.5 meters) mirror — the largest mirror ever launched into space. Those components will not fit into the rocket launching the JWST, so both will unfurl once the telescope is in space.[br]

作者: Dinesh Vishwakarma 时间: 2019-04-05 22:14
Thanks to sharing the XClub, It's wonderful information to know everyone!

作者: sk001 时间: 2019-04-05 22:18
very good information

作者: dr.gautam 时间: 2019-04-05 22:21
very good info share.

作者: RAJUPILLAY2197 时间: 2019-04-05 22:23
Good share brother

作者: Thinesh 时间: 2019-04-05 22:36
Nice information

作者: jk885884 时间: 2019-04-06 01:28
Nice share

作者: Rintu sk 时间: 2019-04-06 10:32
nice information thanks for sharing

作者: yeshi 时间: 2019-04-08 13:54
good share

作者: RJCheman 时间: 2019-04-08 14:55
good information

作者: girijesh@gmail 时间: 2019-04-08 15:01
nice share

作者: girijesh@gmail 时间: 2019-04-08 15:02
that should also happen in India

作者: Mihir3217 时间: 2019-04-08 19:35
Thanks for the information

作者: jcbose 时间: 2019-04-08 19:57
good information

作者: prashantdaga401 时间: 2019-04-08 20:42
good

作者: reddykrishnayad 时间: 2019-04-08 21:34
great share

作者: x_1521644390Hh 时间: 2019-04-09 08:55

作者: mitush 时间: 2019-04-09 09:35
Good information

作者: prasant2020 时间: 2019-04-09 17:02
Good Information

作者: monujangra22 时间: 2019-04-10 07:17
nice one

作者: Ajaysharma1234 时间: 2019-04-14 22:02
nice information

作者: sakhr68 时间: 2019-04-16 06:47
Nice info brother

欢迎光临 XCLUB-COOL STUFF AROUND YOU (https://admin.in.ilovexclub.com/)