The End of Two Moon Missions?

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of Japan’s SLIM mission over the Moon. (JAXA)

Within a two day period, we saw one Moon lander become a burning wreck plummeting towards Earth and another land on the Moon with an immediate problem that threatened its mission. The Moon may be closer, but it is becoming a hazardous place for space missions, similar to Mars.

First, the NASA-contracted Astrobotic Peregrine lander mission ended yesterday as the spacecraft entered the Earth’s atmosphere and burned up. The $108 Moon mission burned up with its cargo, including NASA’s scientific instruments, various rovers, and the DNA remains of humans whose families hoped would be at rest on the Moon’s surface. I expect a few Native Americans may be saying “I told you so” to themselves.

It was almost comical reading a Scientific American article trying to put a good spin on the lost cargo:

In addition, all nine of the payloads that were designed to communicate with Peregrine successfully returned data to Earth. Iris, a rover built by Carnegie Mellon University, sent back a “Hello Earth!” message. COLMENA, a set of five small rovers built by the Mexican Space Agency, also succeeded in sending data back—making it the first Mexican scientific instrument to operate in the moon’s vicinity.

I expect “Hello Earth!” fell far below the ground crew’s expectations, but I guess you take what you can get. And Mexico will probably hold off on any celebrations for the moment.

The second set of bad news related to the latest Japanese Moon mission. The good news is that the Smart Lander for Investigation Moon (SLIM) spacecraft was a success in terms of a soft landing on the Moon. The problem is that the solar array is not getting sufficient solar power for the lander to remain operational for more than a few hours. It is possible that the situation may correct itself as the sunshine shifts over time, but this is not a good start to the mission.

Whatever happens, Japan can still claim to be the fifth nation to successfully land on the Moon. It is not perfect, but the Japanese have more reason to celebrate than the Mexicans at this point.

Pic of the Week: Surfboards in Space

Posted on by onespaceman2000
Image (Credit): JWST image showing an array of odd shapes when the universe was only 600 million to 6 billion years old. The elongated shape in the left bottom part of the image is one of the most common identified shapes so far in Webb’s survey. (NASA, ESA, CSA, Steve Finkelstein (UT Austin), Micaela Bagley (UT Austin), Rebecca Larson (UT Austin))

This week’s image is one from the James Webb Space Telescope (JWST) showing galaxies from long ago. Many of these galaxies have an elongated shape similar to a surfboard. Again, JWST is opening our eyes everyday to the wonder and weirdness of the universe.

Here is more about the image from NASA:

Researchers analyzing images from NASA’s James Webb Space Telescope have found that galaxies in the early universe are often flat and elongated, like surfboards and pool noodles – and are rarely round, like volleyballs or frisbees. “Roughly 50 to 80% of the galaxies we studied appear to be flattened in two dimensions,” explained lead author Viraj Pandya, a NASA Hubble Fellow at Columbia University in New York. “Galaxies that look like pool noodles or surfboards seem to be very common in the early universe, which is surprising, since they are uncommon nearby.”

The team focused on a vast field of near-infrared images delivered by Webb, known as the Cosmic Evolution Early Release Science (CEERS) Survey, plucking out galaxies that are estimated to exist when the universe was 600 million to 6 billion years old.

Tap Into an Upcoming Mars Discussion

Posted on by onespaceman2000
 

The Mars Society’s President and founder Dr. Robert Zubrin is in Europe this week to meet with fellow Mars enthusiasts. You can tap into one of those discussions tomorrow if you are interested.

On January 18, Dr. Zubrin will hold a discussion with UK Astronomer Royal Lord Martin Rees on the topic “How to Explore Mars.” You may remember Dr. Rees from some of his books, including Gravity’s Fatal Attraction: Black Holes in the Universe and The End of Astronauts.

You can go here to get your online spot at the London discussion. Just keep in mind the time difference.

Hopefully, a recorded version will be available shortly after the event.

Video: A Tale About the End of Time

Posted on by onespaceman2000
Image (Credit): Image from the video Outlasting the Universe. (Cool Worlds)

If you are interested in a fascinating tale about the end of the universe, I recommend you watch a recent Cool Worlds Lab video where Professor David Kipping narrates a version of the deep future where mankind is replaced by machines as they slowly expand into and consume the known universe.

The episode, titled Outlasting the Universe, is told via images from sci-fi television series and movies that you will immediately recognize. They are weaved together into a story about one possible future where the almost endless existence of our modified intelligence continues until the very end.

It is a mesmerizing video that may shift your thinking somewhat in terms of the role of humans versus our creations in the future.

Here are some comments from others who viewed the video:

  • This might be the best sci-fi story I’ve ever seen. And it’s even rooted in true physics as we understand it right now. Amazing and powerful.
  • As sad as the ending is, am I crazy for thinking the ending of all life will be actually beautiful? I wish these videos were hours long. So meditative, relaxing and informative.
  • Beautifully written & eloquently spoken, to a backdrop of some of my favourite sci-fi movies! Thank you for this poignant & thought provoking video.

If you have 20 minutes, I suggest you sit back and watch the universe unwind.

Space Stories: Old Stars Harboring Exoplanets, a Hot “Earth” Located, and the Role of Exomoons

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of an Earth-like exomoon orbiting a gas giant planet in a star’s habitable zone. (NASA/JPL-Caltech)

Here are some recent stories of interest related to exoplanets.

—Phys.org: “Old Stars May Be the Best Places to Search for Life“

Once upon a cosmic time, scientists assumed that stars apply an eternal magnetic brake, causing an endless slowdown of their rotation. With new observations and sophisticated methods, they have now peeked into a star’s magnetic secrets and found that they are not what they expected. The cosmic hotspots for finding alien neighbors might be around stars hitting their midlife crisis and beyond. This groundbreaking study, shedding light on magnetic phenomena and habitable environments, has been published in The Astrophysical Journal Letters.

—NASA: “Earth-sized Planet Has a ‘Lava Hemisphere’“

In a system with two known planets, astronomers spotted something new: a small object transiting across the Sun-sized star. This turned out to be another planet: extra hot and Earth-sized…The newly-spotted planet, called HD 63433 d, is tidally locked, meaning there is a dayside which always faces its star and a side that is constantly in darkness. This exoplanet, or planet outside of our solar system, orbits around the star HD 63433 (TOI 1726) in the HD 63433 planetary system. This scorching world is the smallest confirmed exoplanet younger than 500 million years old. It’s also the closest discovered Earth-sized planet this young, at about 400 million years old.

—UniverseToday: “Big Planets Don’t Necessarily Mean Big Moons’”

Does the size of an exomoon help determine if life could form on an exoplanet it’s orbiting? This is something a February 2022 study published in Nature Communications hopes to address as a team of researchers investigated the potential for large exomoons to form around large exoplanets (Earth-sized and larger) like how our Moon was formed around the Earth. Despite this study being published almost two years ago, its findings still hold strong regarding the search for exomoons, as astronomers have yet to confirm the existence of any exomoons anywhere in the cosmos. But why is it so important to better understand the potential for large exomoons orbiting large exoplanets?