Stories
Slash Boxes
Comments

SoylentNews is people

posted by hubie on Friday February 24, @11:03AM   Printer-friendly
from the also-used-for-burning-giant-space-ants dept.

Webb uses galactic megacluster as enormous magnifying lens:

Modern space telescopes are tremendously powerful instruments, able to look deep into space without being limited by the blurring effects of Earth's atmosphere. But even this is not enough to allow them to see the most distant galaxies, which are so far away that looking at them is like looking back in time to the early stages of the universe.

To look even further out, astronomers take advantage of a phenomenon called gravitational lensing. This happens when an object like a galaxy or a galaxy cluster has so much mass that it bends space-time, acting like a magnifying glass and brightening the extremely distant objects behind it.

This is how the James Webb Space Telescope was recently able to see thousands of extremely distant objects by looking at a region of space called Pandora's Cluster, or Abell 2744.

[...] If you look closely at the image, you'll see that many of the galaxies appear to be stretched out or elongated. That's because of the lensing effect, as the gravity of the megacluster warps the light coming from them. But even with this distortion, astronomers can learn a lot about these galaxies from images like this one.

[...] "Pandora's Cluster, as imaged by Webb, shows us a stronger, wider, deeper, better lens than we have ever seen before," said another of the researchers, Ivo Labbe. "My first reaction to the image was that it was so beautiful, it looked like a galaxy formation simulation. We had to remind ourselves that this was real data, and we are working in a new era of astronomy now."

JWST's Pandora's Cluster image


Original Submission

This discussion was created by hubie (1068) for logged-in users only, but now has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
(1)
  • (Score: 3, Funny) by shrewdsheep on Friday February 24, @11:09AM (3 children)

    by shrewdsheep (5215) on Friday February 24, @11:09AM (#1293228)

    The Webb runs Javascript, doesn't it? They should just use the canvas API to magnify the images. Always the pesky hardware guys trying to fix software problems!

    • (Score: 3, Funny) by RS3 on Friday February 24, @04:34PM (1 child)

      by RS3 (6367) on Friday February 24, @04:34PM (#1293256)

      Here here! Get rid of that infernal breakage-prone hardware altogether, along with all of its frustratingly ever-changing incompatibilities, and those weird hardware geeks while we're at it. Run everything in a VM / container... in the "cloud" of course.

      • (Score: 3, Funny) by coolgopher on Friday February 24, @11:43PM

        by coolgopher (1157) Subscriber Badge on Friday February 24, @11:43PM (#1293298)

        Yeah! If they'd just used docker instead, they could've just uploaded the whole thing instead of having to fiddle with rockets and stuff!

    • (Score: 2, Touché) by khallow on Friday February 24, @11:19PM

      by khallow (3766) Subscriber Badge on Friday February 24, @11:19PM (#1293293) Journal
      Run it in CSI mode where you can wave your fingers over the keyboard and blow it up as much as you'd like - reading license plates from a billion light years away!
  • (Score: 0) by Anonymous Coward on Friday February 24, @03:34PM

    by Anonymous Coward on Friday February 24, @03:34PM (#1293248)

    I can't even imagine what that is going to cost

(1)