Thursday July 19, 2018

NASA’s James Webb space telescope comes closer to ‘reaching the stars’

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Aerial View of NASA. Wikimedia
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Washington, May 2, 2017: The James Webb space telescope, designed to unravel some of the greatest mysteries of the universe, has come a step closer to “reaching the stars” as it has completed its environmental testing at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

NASA said the Webb telescope will now be shipped to its Johnson Space Centre in Houston for end-to-end optical testing in a vacuum at its extremely cold operating temperatures.

Then it will continue on its journey to Northrop Grumman Aerospace Systems in Redondo Beach, California, for final assembly and testing prior to launch in 2018.

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After undergoing rigorous environmental tests simulating the stresses of its rocket launch, the Webb telescope team at Goddard analysed the results from this critical optical test and compared it to the pre-test measurements.

The team concluded that the mirrors passed the test with the optical system unscathed.

“The Webb telescope is about to embark on its next step in reaching the stars as it has successfully completed its integration and testing at Goddard,” Bill Ochs, NASA’s Webb telescope project manager, said in a statement on Monday.

Rocket launches create high levels of vibration and noise that rattle spacecraft and telescopes.

At Goddard, engineers tested the Webb telescope in vibration and acoustics test facilities that simulate the launch environment to ensure that functionality is not impaired by the rigorous ride on a rocket into space.

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Before and after these environmental tests took place, optical engineers set up an interferometre, the main device used to measure the shape of the Webb telescope’s mirror.

The James Webb Space Telescope is the world’s most advanced space observatory designed to unravel some of the greatest mysteries of the universe, from discovering the first stars and galaxies that formed after the big bang to studying the atmospheres of planets around other stars.

It is a joint project of NASA, ESA (the European Space Agency) and the Canadian Space Agency. (IANS)

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Emmy Awards 2018: NASA Nominated for Stunning Footage of Cassini voyage to Saturn

The Emmy Awards nominations have turned out to be more diverse than last year

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The Primetime Emmys will be awarded by the ATAS in Los Angeles on September 17.
The Primetime Emmys will be awarded by the ATAS in Los Angeles on September 17. Flickr

The Academy of Television Arts and Sciences (ATAS) has nominated NASA’s Jet Propulsion Laboratory (JPL) for Outstanding Original Interactive Program for its coverage of the Cassini mission’s Grand Finale at Saturn.

The Primetime Emmys will be awarded by the ATAS in Los Angeles on September 17.

The Creative Arts Emmys, which include interactive awards, will be presented during a separate ceremony on September 15 at the Microsoft Theatre in Los Angeles, NASA said in a statement on Friday.

In 2017, after nearly 20 years in space and 13 years revealing the wonders of Saturn, NASA’s Cassini orbiter was running out of fuel. As a final act, Cassini began a whole new mission — its Grand Finale, where it journeyed into the unknown and ended with a spectacular plunge into the planet.

Cassini’s first, daring dive into the unexplored space between the giant planet and its rings kicked off the campaign on April 26 in 2017.

NASA's stunning footage of Cassini lands Emmy nomination
NASA’s stunning footage of Cassini lands Emmy nomination. Pixabay

It culminated on September 15, 2017, with live coverage of Cassini’s plunge into Saturn’s atmosphere, with the spacecraft sending back science to the very last second.

JPL created a multi-month digital campaign to celebrate the mission’s science and engineering accomplishments and communicate why the spacecraft must meet its end in the skies of Saturn.

The multi-faceted campaign included regular updates on Twitter, Facebook, Snapchat, Instagram and the Cassini mission website, multiple live social, web and TV broadcasts during which reporter and public questions were answered.

Also Read: NASA Juno Data Indicate Another Possible Volcano on Jupiter Moon Io

A dramatic short film to communicate the mission’s story and preview its endgame; multiple 360-degree videos, including NASA’s first 360-degree livestream of a mission event from inside JPL mission control.

The Emmy Awards nominations have turned out to be more diverse than last year. Fantasy drama “Game of Thrones” has earned 22 nominations for the coveted Awards, while HBO’s 17-year streak as the most nominated network has been broken by Netflix. (IANS)