{"id":7293,"date":"2022-07-14T14:31:17","date_gmt":"2022-07-14T14:31:17","guid":{"rendered":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/nasa-telescope-takes-super-sharp-view-of-early-cosmos"},"modified":"2022-07-14T14:52:44","modified_gmt":"2022-07-14T14:52:44","slug":"nasa-telescope-takes-super-sharp-view-of-early-cosmos","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/nasa-telescope-takes-super-sharp-view-of-early-cosmos","title":{"rendered":"Nasa telescope takes super sharp view of early cosmos"},"content":{"rendered":"

Africa-Press – Sierra-Leone. <\/strong><\/span>The first full-colour picture from the new James Webb Space Telescope has been released \u2013 and it doesn\u2019t disappoint.<\/p>\n

The image is said to be the deepest, most detailed infrared view of the Universe to date, containing the light from galaxies that has taken many billions of years to reach us.<\/p>\n

US President Joe Biden was shown the image during a White House briefing.<\/p>\n

Further debut pictures from James Webb are due to be released by Nasa in a global presentation on Tuesday.<\/p>\n

\u201cThese images are going to remind the world that America can do big things, and remind the American people \u2013 especially our children \u2013 that there\u2019s nothing beyond our capacity,\u201d President Biden remarked.<\/p>\n

We can see possibilities no one has ever seen before. We can go places no one has ever gone before.\u201d<\/p>\n

The $10bn James Webb Space Telescope (JWST), launched on 25 December last year, is billed as the successor to the famous Hubble Space Telescope.<\/p>\n

It will make all sorts of observations of the sky but has two overarching goals. One is to take pictures of the very first stars to shine in the Universe more than 13.5 billion years ago; the other is to probe far-off planets to see if they might be habitable.<\/p>\n

The image unveiled before President Biden showcases Webb\u2019s capabilities to pursue the first of these objectives.<\/p>\n

What you see is a cluster of galaxies in the Southern Hemisphere constellation of Volans known by the ungainly name of SMACS 0723.<\/p>\n

The cluster itself isn\u2019t actually that far away \u2013 \u201conly\u201d about 4.6 billion light-years in the distance. But the great mass of this cluster has bent and magnified the light of objects that are much, much further away.<\/p>\n

It\u2019s a gravitational effect; the astronomical equivalent of a zoom lens for a telescope.<\/p>\n

Webb, with its 6.5m-wide golden mirror and super-sensitive infrared instruments, has managed to detect in this picture the distorted shape (the red arcs) of galaxies that existed a mere 600 million years after the Big Bang (the Universe is 13.8 billion years old).<\/p>\n

And it\u2019s even better than that. Scientists can tell from the quality of the data produced by Webb that the telescope is sensing space way beyond the most far-flung object in this image.<\/p>\n

As a consequence, it\u2019s possible this is even the deepest cosmic viewing field ever obtained.<\/p>\n

\u201cLight travels at 186,000 miles per second. And that light that you are seeing on one of those little specks has been travelling for over 13 billion years,\u201d said Nasa administrator Bill Nelson.<\/p>\n

\u201cAnd by the way, we\u2019re going back further, because this is just the first image. They\u2019re going back about 13 and a half billion years. And since we know the Universe is 13.8 billion years old, you\u2019re going back almost to the beginning.\u201d<\/p>\n

Hubble used to stare at the sky for weeks on end to produce this kind of result. Webb identified its super-deep objects after only 12.5 hours of observations.<\/p>\n

Nasa and its international partners, the European and Canadian space agencies, will release further colour imagery from Webb on Tuesday.<\/p>\n

One of the topics to be discussed will touch on that other overarching goal: the study of planets outside our Solar System.<\/p>\n

Webb has analysed the atmosphere of WASP-96 b, a giant planet located more than 1,000 light-years from Earth. It will tell us about the chemistry of that atmosphere.<\/p>\n

WASP-96 b orbits far too close to its parent star to sustain life. But, one day, it\u2019s hoped Webb might spy a planet that has gases in its air that are similar to those that shroud the Earth \u2013 a tantalising prospect that might hint at the presence of biology.<\/p>\n

asa scientists are in no doubt that Webb will fulfil its promise.<\/p>\n

\u201cI have seen the first images and they are spectacular,\u201d deputy project scientist Dr Amber Straughn said of Tuesday\u2019s further release.<\/p>\n

\u201cThey\u2019re amazing in themselves just as images. But the hints of the detailed science we\u2019re going to be able to do with them is what makes me so excited,\u201d she told BBC News.<\/p>\n

Dr Eric Smith, the programme scientist for the Webb project, said he thought the public had already grasped the significance of the new telescope.<\/p>\n

\u201cThe design of Webb, the way Webb looks, I think, is in large part the reason the public is really fascinated by this mission. It looks like a spaceship from the future.\u201d<\/p>\n

 <\/p>\n

For More News And Analysis About Sierra-Leone<\/a> Follow Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Sierra-Leone. The first full-colour picture from the new James Webb Space Telescope has been released \u2013 and it doesn\u2019t disappoint. The image is said to be the deepest, most detailed infrared view of the Universe to date, containing the light from galaxies that has taken many billions of years to reach us. US […]<\/p>\n","protected":false},"author":84,"featured_media":7292,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,8,9],"tags":[291,293,292],"class_list":["post-7293","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-homepage-english","category-miscellaneous","tag-africa-press","tag-africa-press-sierra-leone","tag-sierra-leone"],"yoast_head":"\nNasa telescope takes super sharp view of early cosmos - Sierra Leone<\/title>\n<meta name=\"description\" content=\"The first full-colour picture from the new James Webb Space Telescope has been released \u2013 and it doesn\u2019t disappoint. 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