If you are looking for something soothing and hopeful at the end of the day, I recommend this video from Aeon magazine. It is all about the image you see above from the Artemis II mission, and it provides some helpful context to better understand our position in this universe of ours.
I think Carl Sagan would like the narrative as well.
This week’s image is from NASA’s Astronomy Picture of the Day. It is a composite image from the James Webb Space Telescope (JWST) and the Hubble Space Telescope showing Messier 64 (M64), which is a spiral galaxy about 17 million light-years away.
Here is a little more information from NASA explaining what you are seeing here:
Sometimes where Hubble finds darkness, Webb sees light. An example is today’s composite images of Messier 64 (M64), a nearby spiral galaxy of many names. The dark band of dust partially blocking its bright core earned it the moniker “the Black Eye Galaxy.” Webb’s Mid-InfraRed Instrument (MIRI) sees that dust, shown in red, as it absorbs and re-emits light from surrounding newborn stars. These young stars are embedded in pink star-forming regions in the secondary Hubble-only image. M64’s inner and outer gas regions counter-rotate, creating regions of increased star formation where the two gas “currents” meet and compress. A merger between M64 and a smaller galaxy was likely the cause of the opposing motion of the outer gas. Spiral galaxies were once thought to have peaceful histories. M64 was key evidence that spiral galaxies, including the Milky Way, can and do experience mergers. Webb’s view of M64 will tell astronomers about the structure, motion, and composition of the galaxy’s dust and add context to the galaxy’s merger history and evolution.
“It’s not like they’re writing the show and then having to come up with, ‘Oh, how to end this?’…This is a 40 episode story. So the ending… is very satisfying because it’s the end of a novel.”
–Statement by actor Ashley Zukerman, who plays Daniel Keene in the Silo television series, regarding the fourth and final season of the series coming out on July 9, 2027. If you missed the series, particularly season three, it is a show you need to watch. We talk about living in lava tubes on the Moon or Mars, but this show is about living in an underground silo for generations here on Earth after some pretty horrible terra-forming above. You can catch it on Apple TV.
Multiple Choice 1: How long will it take Voyager 2 to reach the Oort Cloud?
A. About 4 years
B. About 110 years
C. About 300 years
D. About 450 years
Multiple Choice 2: How long will it take Voyager 2 to cross the Oort Cloud?
A. About 50 years
B. About 250 years
C. About 1,500 years
D. About 300,000 years
Take a guess and then check your answer by going to the “Astronomy Question Answer Sheet” page.
Here are some recent space-related stories of interest.
—CNBC: “SpaceX Rival Launches Rocket in Historic First, Says Industry is ‘Desperate’ For More”
German rocket maker Isar Aerospace successfully reached orbit for the first time over the weekend, marking a milestone for Europe’s commercial space industry as the company looks to ramp up launches to meet what it says is booming demand. The Munich-based company’s Spectrum rocket reached orbit on Saturday and successfully deployed its payloads in low Earth orbit, an achievement that came on only its second test flight. Chief Commercial Officer Stella Guillen told CNBC on Monday that the company was now focused on scaling production, saying the space industry was “desperate” for additional launch capacity and that Isar had a pipeline worth more than 10 billion euros ($11.6 billion).
—Royal Astronomical Society: “‘Fingerprints’ Inside the Sun Could Reveal If It Once Swallowed a Planet“
It is thought the Sun may have engulfed a super-Earth-sized planet early in its history. Now a new study has gone a step further by suggesting that such an event may have left behind detectable clues inside our star which could still be visible today. This idea of a measurable signature or ‘fingerprints’ in the present-day solar interior was explored by research published today in Monthly Notices of the Royal Astronomical Society. Professor Mutlu Yildiz, of Ege University in Turkey, said: “Our new study suggests that a planet several times more massive than Earth may have fallen into the young Sun and left a lasting chemical imprint deep inside it.
—Physics World: “Moon’s Water Reserves Insufficient to Sustain a Lunar City, Astronomers Find“
Some countries and even wealthy individuals are setting their sights on the Moon with ambitious plans to create a lunar colony. That would require a lot of resources launched from Earth, but how much water and power would be required to keep a lunar city going?…Even assuming one billion tonnes of water on the Moon, if nothing was recycled then a city of a million would last only a few years while a population of 100 000 would run for 20 years before running dry. Even when recycling the water with an efficiency of 98% – as performed on the International Space Station – a city of a million would only have enough water for around a century.
Note: Here is the podcast version of this post.
Our Awesome Universe 