• About Us
  • Contact Us
  • Cookie policy (EU)
  • Home
  • Privacy Policy
  • Video
  • Write for us
Today Headline
  • HOME
  • NEWS
    • POLITICS
    • News for today
    • Borisov news
  • FINANCE
    • Business
    • Insurance
  • Video
  • TECHNOLOGY
  • ENTERPRISE
  • LIFESTYLE
    • TRAVEL
    • HEALTH
    • ENTERTAINMENT
  • AUTOMOTIVE
  • SPORTS
  • Travel and Tourism
  • HOME
  • NEWS
    • POLITICS
    • News for today
    • Borisov news
  • FINANCE
    • Business
    • Insurance
  • Video
  • TECHNOLOGY
  • ENTERPRISE
  • LIFESTYLE
    • TRAVEL
    • HEALTH
    • ENTERTAINMENT
  • AUTOMOTIVE
  • SPORTS
  • Travel and Tourism
No Result
View All Result
TodayHeadline
No Result
View All Result

James Webb Space Telescope takes first images, selfie

February 15, 2022
in Technology
0
James Webb Space Telescope takes first images, selfie
0
SHARES
3
VIEWS
Share on FacebookShare on Twitter


The James Webb Space Telescope has taken its first images, including a “selfie.”

A mosaic image with more than 2 billion pixels helped the Webb team to determine that Webb’s Near Infrared Camera (NIRCam) instrument can collect light from celestial objects.

The objective was to identify starlight from the same star in each of the telescope’s 18 primary mirror segments.

The result showed 18 randomly organized dots of starlight, which are the product of Webb’s unaligned mirror segments all reflecting light from the same star back at Webb’s secondary mirror and into NIRCam’s detectors.

The Webb team chose a bright, isolated star called HD 84406 and Webb was repointed to 156 positions around the star’s predicted location, generating 1,560 images with NIRCam’s 10 detectors over a period of nearly 25 hours. That amounted to 54 gigabytes of raw data.

This image mosaic was created by pointing the telescope at a bright, isolated star in the constellation Ursa Major known as HD 84406.
This image mosaic was created by pointing the telescope at a bright, isolated star in the constellation Ursa Major known as HD 84406.
NASA

The initial search covered an area about the size of the full moon and light was found from all 18 segments very near the center.

“This initial search covered an area about the size of the full moon because the segment dots could potentially have been that spread out on the sky,” Marshall Perrin, deputy telescope scientist for Webb and astronomer at the Space Telescope Science Institute, said in a statement.”Taking so much data right on the first day required all of Webb’s science operations and data processing systems here on Earth working smoothly with the observatory in space right from the start. And we found light from all 18 segments very near the center early in that search! This is a great starting point for mirror alignment.”

NASA has labeled which dot corresponds to which mirror segment, including those taken by the segments on Webb’s mirror wings.

This file photo taken on December 25, 2021 shows Arianespace's Ariane 5 rocket with NASAs James Webb Space Telescope onboard lifting up from the launchpad, at Europes Spaceport, the Guiana Space Center in Kourou, French Guiana.
This file photo taken on December 25, 2021 shows Arianespace’s Ariane 5 rocket with NASAs James Webb Space Telescope onboard lifting up from the launchpad, at Europes Spaceport, the Guiana Space Center in Kourou, French Guiana.
AFP via Getty Images

“Right now, as Webb is still getting into focus, you can think of Webb as an 18-eyed creature looking in 18 separate directions. A larger dot indicates that the segment is less focused than a smaller dot. A flatter, pancake-like dot indicates that a segment may be tilted,” the NASA Webb team explained on Twitter.

In the next month or so, the team will gradually adjust the mirror segments until they become a single star.

The selfie was created using a specialized pupil imaging lens inside NIRCam that was designed to take images of the primary mirror segments instead of images of space. NASA said in a blog post that the image gave an early indication of the primary mirror alignment to the instrument.

NIRCam will be used throughout almost the entire, months-long alignment of the telescope’s mirrors, but the agency noted that the instrument is operating “far above its ideal temperature” and visual artifacts can be seen in the mosaic.

  This 2015 artist's rendering provided by Northrop Grumman via NASA shows the James Webb Space Telescope.
This 2015 artist’s rendering provided by Northrop Grumman via NASA shows the James Webb Space Telescope.
AP

The impact of these artifacts, it said, would lessen significantly as Webb draws closer to its ideal cryogenic operating temperatures.

Moving forward, Webb’s images are expected to become clearer, with more detail as the telescope’s other three instruments arrive at their intended cryogenic operating temperatures and begin capturing data.

The first scientific images are expected over the summer.

“Launching Webb to space was of course an exciting event, but for scientists and optical engineers, this is a pinnacle moment, when light from a star is successfully making its way through the system down onto a detector,” Michael McElwain, Webb observatory project scientist, said.

Tags: ImagesJamesselfiespacetakestelescopeWebb
Previous Post

Booster Effectiveness Wanes After 4 Months, Study Shows

Next Post

Boy, 14, charged with manslaughter over fatal car crash in Cairns

Related Posts

Using tactile sensors and machine learning to improve how robots manipulate fabrics
Technology

Using tactile sensors and machine learning to improve how robots manipulate fabrics

1) We initially approach the...

Read more
Is propane a solution for more sustainable air conditioning?
Technology

Is propane a solution for more sustainable air conditioning?

Credit: Pixabay/CC0 Public Domain Current...

Read more
Solid-state memory in neuromorphic circuits
Technology

Solid-state memory in neuromorphic circuits

Schematic connection of two biological...

Read more
Open-source software gives a leg up to robot research
Technology

Open-source software gives a leg up to robot research

Quad-SDK is an open-source, full-stack...

Read more
AI-designed camera only records objects of interest while being blind to others
Technology

AI-designed camera only records objects of interest while being blind to others

Object class-specific imaging using a...

Read more
Load More
Next Post
Boy, 14, charged with manslaughter over fatal car crash in Cairns

Boy, 14, charged with manslaughter over fatal car crash in Cairns

  • Trending
  • Comments
  • Latest
Collapsed Doggy sex position promises clitoral stimulation for extra pleasure

Collapsed Doggy sex position promises clitoral stimulation for extra pleasure

Six times actors really romped in sex scenes that make 365 DNI look tame

Six times actors really romped in sex scenes that make 365 DNI look tame

Trisha Paytas Destroyed The Internet By Posting Her Toilet Paper Asshole

Trisha Paytas Destroyed The Internet By Posting Her Toilet Paper Asshole

Do Sex Dolls Feel Real? – Answering Important Questions 

Using tactile sensors and machine learning to improve how robots manipulate fabrics

Using tactile sensors and machine learning to improve how robots manipulate fabrics

Reuters reveals Rotavirus childhood vaccine shortage hits four African countries

Reuters reveals Rotavirus childhood vaccine shortage hits four African countries

Chemical-free weed is hot in L.A. Here’s why.

Chemical-free weed is hot in L.A. Here’s why.

Woman describes frequent abuse by R Kelly before she was 18

Woman describes frequent abuse by R Kelly before she was 18

About Us

Todayheadline the independent news and topics discovery
A home-grown and independent news and topic aggregation . displays breaking news linking to news websites all around the world.

Follow Us

Latest News

Using tactile sensors and machine learning to improve how robots manipulate fabrics

Using tactile sensors and machine learning to improve how robots manipulate fabrics

Reuters reveals Rotavirus childhood vaccine shortage hits four African countries

Reuters reveals Rotavirus childhood vaccine shortage hits four African countries

Using tactile sensors and machine learning to improve how robots manipulate fabrics

Using tactile sensors and machine learning to improve how robots manipulate fabrics

Reuters reveals Rotavirus childhood vaccine shortage hits four African countries

Reuters reveals Rotavirus childhood vaccine shortage hits four African countries

Chemical-free weed is hot in L.A. Here’s why.

Chemical-free weed is hot in L.A. Here’s why.

  • Real Estate
  • Education
  • Parenting
  • Cooking
  • NFL Games On TV Today
  • Travel and Tourism
  • Home & Garden
  • Pets
  • Privacy & Policy
  • Contact
  • About

© 2021 All rights are reserved Todayheadline

No Result
View All Result
  • Real Estate
  • Education
  • Parenting
  • Cooking
  • NFL Games On TV Today
  • Travel and Tourism
  • Home & Garden
  • Pets
  • Privacy & Policy
  • Contact
  • About

© 2021 All rights are reserved Todayheadline

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In

Add New Playlist