NGC 1999

Cosmic Keyhole" (NGC 1999) Scientists first believed that the conspicuous hole in the center of this nebula was a Bok globule - a dense, cold cloud of gas and dust that blocks out background light. But later observations suggest that the dark patch is actually an empty void in space

Flight Commander John Young reviewing checklists aboard Space Shuttle Columbia, STS-1

The Crew Pressure Vessel of Enterprise (OV-101) being lowered into the test chamber to a pressure test.

Date: January 21, 1975

NASA ID: MH75-6720

NASA spacewalkers Bob Behnken and Chris Cassidy

iss063e053998 (July 21, 2020) --- NASA spacewalkers (from left) Bob Behnken and Chris Cassidy give a thumbs up during a spacewalk to install hardware and upgrade International Space Station systems. This photograph was taken by an Expedition 63 crew member inside the cupola, the orbiting lab's "window to the world."

NASA Johnson on Flickr

Typhoon Maysak viewed from the International Space Station, Expedition 43

The celestial object of the day is Phobos!

It's Mars's largest moon with 21 km (13 mi), it orbits Mars at only 6,000 km (3,700 mi) and it gets closer by 1.8 meters every year, at that rate is expected to collide with Mars or form a planetary ring in about 30-50 million years!

Stingray Nebula

“Archival data from the NASA/ESA Hubble Space Telescope reveal that the nebula Hen 3-1357, nicknamed the Stingray nebula, has faded precipitously over just the past two decades. Witnessing such a swift rate of change in a planetary nebula is exceedingly rare, say researchers. These images captured by Hubble in 1996 (left), when compared to Hubble images taken in 2016 (right), show a nebula that has drastically dimmed in brightness and changed shape. Bright blue shells of gas near the centre of the nebula have all but disappeared, and the wavy edges that earned this nebula its aquatic-themed name are virtually gone. The young nebula no longer pops against the black velvet background of the distant Universe.” - via Wikimedia Commons

The Boogeyman Nebula and Tarantula Nebula