Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search
 

cpwm17

(3,829 posts)
5. The US will launch the James Webb Space Telescope around 2018
Wed Feb 18, 2015, 07:29 PM
Feb 2015


http://en.wikipedia.org/wiki/James_Webb_Space_Telescope

The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a planned space observatory scheduled to launch in October 2018. The JWST will offer unprecedented resolution and sensitivity from long-wavelength visible to the mid-infrared, and is a successor instrument to the Hubble Space Telescope and the Spitzer Space Telescope. The telescope features a segmented 6.5-meter (21 ft) diameter primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K (−220 °C; −370 °F).

JWST's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology. One particular goal involves observing some of the most distant objects in the Universe, beyond the reach of current ground and space based instruments. This includes the very first stars, the epoch of reionization, and the formation of the first galaxies. Another goal is understanding the formation of stars and planets. This will include imaging molecular clouds and star-forming clusters, studying the debris disks around stars, direct imaging of planets, and spectroscopic examination of planetary transits.

A moon base would be an extremely expensive waste of money and it would be based on science fiction fantasies. Unmanned space missions are far cheaper and can also produce great science. I'm all for increasing the budget for good science.

Recommendations

0 members have recommended this reply (displayed in chronological order):

Latest Discussions»Culture Forums»Science»New planet-hunting tool c...»Reply #5