Astronomy Picture of the Day ·

A Message from the Gravitational Universe

The Astronomy Picture of the Day for June 29, 2023 is “A Message from the Gravitational Universe,” an image. It is credited to Illustration Credit: NANOGrav Physics Frontier Center; Text: Natalia Lewandowska ( SUNY Oswego ). The original explanation runs about 172 words.

The illustration shows the beams from pulsars around the image and a pair of merging black holes on the upper left. A grid depicting the warping of spacetime by passing gravitational waves spreads across the image center. Please see the exp
Credit: Illustration Credit: NANOGrav Physics Frontier Center; Text: Natalia Lewandowska ( SUNY Oswego ) Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Monitoring 68 pulsar s with very large radio telescope s, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has uncovered evidence for the gravitational wave (GW) background by carefully measuring slight shifts in the arrival times of pulses.”

— APOD editors, June 29, 2023

Read the full explanation on science.nasa.gov

At a glance

Date
June 29, 2023
Type
Image
Credit
Credit: Illustration Credit: NANOGrav Physics Frontier Center; Text: Natalia Lewandowska ( SUNY Oswego )
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 172 words

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Topics in this entry

Black holes

Topics are matched from words in the title and explanation.

On this day: June 29 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.