Astronomy Picture of the Day ·

Breaking Distant Light

The Astronomy Picture of the Day for September 20, 2020 is “Breaking Distant Light,” an image. It is credited to Image Credit: VIMOS , VLT , ESO. The original explanation runs about 138 words.

Breaking Distant Light
Credit: Image Credit: VIMOS , VLT , ESO Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“In the distant universe, time appears to run slowly. Since time-dilated light appears shifted toward the red end of the spectrum ( redshifted ), astronomers are able to use cosmological time-slowing to help measure vast distances in the universe.”

— APOD editors, September 20, 2020

Read the full explanation on science.nasa.gov

At a glance

Date
September 20, 2020
Type
Image
Credit
Credit: Image Credit: VIMOS , VLT , ESO
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 138 words

All of September 2020 → · 2020 by month → · Full archive since 1995 →

Topics in this entry

Galaxies

Topics are matched from words in the title and explanation.

On this day: September 20 in other years

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Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.