. 24/7 Space News .
STELLAR CHEMISTRY
Scientists eagerly await James Webb telescope to discover stars, exoplanets
by Paul Brinkmann
Washington DC (UPI) Nov 18, 2021

Scientists around the world eagerly await discoveries of early galaxies and exoplanets after the James Webb Space Telescope, the most powerful telescope ever conceived, is launched Dec. 18, a panel of scientists and space agency officials said Thursday.

The Webb telescope, an international partnership among NASA and the space agencies of Canada and Europe, will reveal new and unexpected knowledge about our universe, panel members said during a press conference from NASA's Goddard Space Center in Maryland.

The two biggest priorities for the Webb telescope are to view galaxies formed about 100 million years after the Big Bang and to scope out exoplanets -- planets in other star systems -- that have atmospheres or signs of life, panel members said.

"The search for first galaxies will be important, and Webb will look at a lot of planets where we think it might rain lava, for example, and we'll determine if that's really true," Klaus Pontoppidan, a Webb project scientist, said during the press conference.

"It will probably also reveal new questions for future generations that we can't anticipate yet."

The Webb telescope, named for NASA's second administrator, James E. Webb, is years behind schedule and billions of dollars over budget, with the cost approaching $10 billion. It is due to be launched from the European Space Agency's Guiana Space Center in South America -- which is part of Europe's contribution to the project.

Despite the excess cost and delays, the astronomy community around the world eagerly awaits the first images Webb will transmit back to Earth from its position a million miles past the Blue Planet, said Amber Straughn, an astrophysicist who is NASA's Webb deputy project scientist for communications.

The telescope "was designed to answer some of the biggest questions that we have in astronomy today. ... Where do we come from and how did we get here and are we alone?" Straughn said.

Scientists still are unsure of exactly what Webb will observe first, though, she said. Its infrared vision should be able to see back in time about 13.5 billion years.

"We think that the very first stars that formed in the early universe were very, very big ... much bigger than stars today," Straughn said. "We've never observed the first population of stars, and we certainly hope we might get lucky and see those, but we're not sure if we will."

Scientists and officials declined to identify the first images Webb will release to the public.

"The science ... will be announced immediately after it's observed. So we'll be getting the data as soon as we have them, and they will cover a very wide range of topics all the way from the solar system to the very first stars, galaxies and black holes," said John Mather, a Webb senior project scientist.

Inside our solar system, Webb is due to peer closely at objects such as Jupiter's moon Europa, which may have a liquid ocean under its crust, Webb said.

"We have a list of 65 observations that we're going to observe in the first year," Mather said. "We will be looking nearby at first, not looking way on to other galaxies at first."

As powerful as it is, the telescope may not be the best tool to view objects relatively close to Earth, such as Mars, said Marcia Rieke, a professor of astronomy and principal investigator for Webb's Near-Infrared Camera, from the University of Arizona.

"Mars is actually very, very bright in the infrared Webb will use, and so if we want to take an image, we have to take a series of quick snapshots of just a little portion of the disk and then stitch them together," Rieke said.

"I think when we get to the outer solar system planets like Uranus and Neptune, it will be much easier to take ... images that will rival what we've seen from the Voyager flybys, and we'll be able to trace some of the molecules in those planetary atmospheres things like methane."

Asked if Webb would be able to study ʻOumuamua, a unique interstellar object that zipped through the solar system in 2017, Rieke said she didn't know.

"I don't know if we know its orbit well enough to be able to point to where it has traveled to now in space because it spent such a short time in the solar system -- it kind of whizzed by."

The telescope's main observation dish is coated with gold because scientists found that the substance was highly reflective, said Lee Feinberg, NASA's Webb optical telescope element manager.

"We wanted a material that would reflect a maximum number of photons," Feinberg said. "If we had picked a material that doesn't do a good job at reflecting, it's almost like we'd have a smaller telescope. Gold has an amazing reflectivity -- 98% reflective."

The James Webb space observatory weighs about 14,300 pounds and has a sun shield the size of a tennis court.

After the telescope is launched, engineers will spend about a month deploying Webb's instruments, sun shield and observation dish. Then, another six months will pass as teams evaluate Webb's condition and accuracy, panel members said.


Related Links
Stellar Chemistry, The Universe And All Within It


Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Monthly Supporter
$5+ Billed Monthly


paypal only
SpaceDaily Contributor
$5 Billed Once


credit card or paypal


STELLAR CHEMISTRY
James Webb Space Telescope will reveal new insights into astrochemistry
Washington DC (SPX) Nov 11, 2021
On Dec. 18, the James Webb Space Telescope (JWST) will launch from French Guiana to its destination almost a million miles from Earth. The telescope will give scientists unprecedented views of chemistry occurring throughout the universe. This information will provide new insights into how planetary systems form and whether life-sustaining conditions exist elsewhere in the universe, according to a cover story in Chemical and Engineering News, an independent news outlet of the American Chemical Society. ... read more

Comment using your Disqus, Facebook, Google or Twitter login.



Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

STELLAR CHEMISTRY
Japanese space tourists arrive at launch site ahead of ISS trip

NASA awards contract for bed rest studies

Crew operations aboard Space Station return to normal

Moonshot: Japan recruits first new astronauts in 13 years

STELLAR CHEMISTRY
RocketStar gets SBIR contract to develop new plasma thrusters

Maritime Launch Services announces Nanoracks as payload provider; Unveils Spaceport Nova Scotia design

Pulsar demonstrates green, high power rocket engine

Aerospike engine from Pangea Aerospace trialled on DLR test stand

STELLAR CHEMISTRY
Mars helicopter Ingenuity completes 16th flight

ASU team celebrates 20th anniversary of NASA's Mars Odyssey Orbiter arrival at the Red Planet

Rocky roads through Lanzarote

NASA's Perseverance captures challenging flight by Mars Helicopter

STELLAR CHEMISTRY
Chinese astronauts' EVAs to help extend mechanical arm

Astronaut becomes first Chinese woman to spacewalk

Shenzhou XIII crew ready for first spacewalk

Chinese astronauts arrive at space station for longest mission

STELLAR CHEMISTRY
Satellite operator Telesat goes public

CGI selected for GSA's ASTRO space and development IDIQ contract

First Airbus built Inmarsat-6 satellite shipped to Japan ready for launch

Decisions from the ESA Intermediate Ministerial Meeting 2021

STELLAR CHEMISTRY
DARPA focusing on biomanufacturing to B-SURE

When debris disaster strikes

Russia creates debris field near ISS

Teledyne e2v HiRel offers new radiation dosimeters for space applications

STELLAR CHEMISTRY
New deep learning method adds 301 planets to Kepler's total count

Roasted and Shredded by a Stellar Sidekick

NASA announces discovery of 301 new exoplanets

"Alien" invasions and the need for planetary biosecurity

STELLAR CHEMISTRY
Science results offer first 3D view of Jupiter's atmosphere

Juno peers deep into Jupiter's colorful belts and zones

Scientists find strange black 'superionic ice' that could exist inside other planets

Jupiter's Great Red Spot is deeper than thought, shaped like lens









The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.