APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
MACS0647: Gravitational Lensing of the Early Universe by Webb
Explanation: Gravitational lensing by the galaxy cluster MACS0647 -- in which the massive foreground cluster distorts and lenses the light emitted by distant background galaxies along the line of sight — is on vivid display here in this recent multi-color infrared image from the James Webb Space Telescope (JWST) . In particular, the background source MACS0647-JD is seen to be lensed three times by the cluster. When first discovered with the Hubble Space Telescope , MACS0647-JD was observed as an amorphous blob. With Webb though, this single source is revealed to be a pair or small group of galaxies . The colors of the MACS0647-JD objects are different as well -- indicating differences potentially in the age or dust content of these galaxies. These new images provide rare examples of galaxies in an era only a few 100 million years after the Big Bang .
Explore Your Universe: Random APOD Generator
| Date | January 18, 2023 |
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| Credit | Image Credit: NASA , ESA , CSA , Dan Coe ( STScI ), Rebecca Larson (UT), Yu-Yang Hsiao (JHU); Processing: Alyssa Pagan (STScI); Text: Michael Rutkowski ( Minn. St. U. Mankato ) |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |