Space Station Silhouette on the Moon

Discover the universe! Each day a different image or photograph of our universe is featured, along with a brief explanation written by an astronomer.

December 6th, 2021.
The silhouette of the International is shown in the featured image.
The space station is in front of the moon.
Please see the explanation for more detailed information.

There is a space station on the moon.
Andrew McCarthy's image credit is copyrighted.

There is an unusual spot on the Moon. It's the International Space Station. The Earth-orbiting space platform was photographed in front of a partially lit gibbous Moon last month. A video of the International Space Station crossing the Moon was used to create the featured composite, which was taken in Arizona last month. The outlines of solar panels and trusses can be seen in a close inspection of this crisp silhouette. The bright crater Tycho can be seen on the upper left, as well as the relatively rough, light colored terrain known as highlands, and the dark colored areas known as maria. The International Space Station can be seen from your area.

There are 90 black holes merging.

Robert Nemiroff is an author and Jerry Bonnell is an editor.
Phillip Newman has specific rights.
NASA has a privacy policy on the internet.
There is a service at NASA.
& Michigan Tech. U.

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Discover the universe! Each day a different image or photograph of our universe is featured, along with a brief explanation written by an astronomer.

December 7th, 2021.
The featured image shows the first 90.
The events of the waves have ever been detected.
Please see the explanation for more detailed information.

There are ninety giltational wave spectrums and counting.
The image was created by Sudarshan Ghonge and Karan Jani.

Loud chirps are broadcast into the universe when two black holes collide. Since the first three observing runs, we have heard about 90 unusual chirps. The 90 are detected by the giant detectors of LIGO in the USA, VIRGO in Europe, and KAGRA in Japan. The brighter the graphic is, the more energy is received on Earth. These chirps are giving humanity an unprecedented inventory of black holes and neutron stars, and a new way to measure the expansion rate of our universe. A fourth observing run with increased sensitivity is planned to begin in December of 2022.

Tomorrow's picture is comet tails.

Robert Nemiroff is an author and Jerry Bonnell is an editor.
Phillip Newman has specific rights.
NASA has a privacy policy on the internet.
There is a service at NASA.
& Michigan Tech. U.