Space Stories: Mars Ascent Vehicle, Dark Matter Stars, and a New Russian Space Station

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of the Mars Ascent Vehicle. (NASA)

Here are some recent stories of interest.

—NASA/JPJ.com : “NASA Mars Ascent Vehicle Continues Progress Toward Mars Sample Return“

NASA’s Mars Ascent Vehicle (MAV) recently reached some major milestones in support of the Mars Sample Return program. The Mars Ascent Vehicle would be the first launch of a rocket from the surface of another planet. The team developing MAV conducted successful tests of the first and second stage solid rocket motors needed for the launch. Mars Sample Return will bring scientifically selected samples to Earth for study using the most sophisticated instrumentation around the world. This strategic partnership with ESA (European Space Agency) features the first mission to return samples from another planet. The samples currently being collected by NASA’s Perseverance Rover during its exploration of an ancient river delta have the potential to reveal the early evolution of Mars, including the potential for ancient life.

—ScienceNews : “The James Webb Telescope May Have Spotted Stars Powered by Dark Matter“

The James Webb Space Telescope has spotted objects in the early universe that might be a new kind of star — one powered by dark matter. These “dark stars” are still hypothetical. Their identification in JWST images is far from certain. But if any of the three candidates — reported in the July 25 Proceedings of the National Academy of Sciences — turn out to be this new type of star, they could offer a glimpse of star formation in the early universe, hint at the nature of dark matter and possibly explain the origins of supermassive black holes.

—CNN : “Russia Proposes Joint Research Module on Space Station for China, India, Brazil and South Africa“

The head of Russia’s space agency has extended an offer to Moscow’s partners in the BRICS group – Brazil, India, China and South Africa – to participate in the construction of a joint module for its planned orbital space station, state media reported Monday. Construction of the planned space station follows Moscow’s decision last year to end its decades-long partnership with NASA and withdraw from the aging International Space Station – one of the last remaining channels of cooperation between Russia and the United States.

DRACO: A New Approach for Traveling to Mars

Posted on by onespaceman2000
Image (Credit): Artist’s rendering of the DRACO spacecraft. (DARPA)

When you hear the word DRACO, you may think of the Harry Potter series or even severe Athenians, but NASA wants you to think of speedy travel to Mars. DRACO, or Demonstration for Rocket to Agile Cislunar Operations, is NASA’s plan to develop a nuclear thermal rocket engine with the Defense Advanced Research Projects Agency (DARPA). Defense contractor Lockheed Martin was recently tapped to lead this effort.

Such an engine would shorten the journey to Mars, thereby exposing astronauts to less risk from solar energetic particles and galactic cosmic rays as well as lessening the amount of supplies needed for the trip. The rocket engine could also be used initially for shorter trips to the Moon.

Dr. Stefanie Tompkins, director, DARPA, stated earlier:

The space domain is critical to modern commerce, scientific discovery, and national security. The ability to accomplish leap-ahead advances in space technology through the DRACO nuclear thermal rocket program will be essential for more efficiently and quickly transporting material to the Moon and eventually, people to Mars.

You can read more about this new rocket approach and the parties involved at this NASA link.

What Do Frozen Worms Say About Space Travel?

Posted on by onespaceman2000
Image (Credit): Hibernation pods for space travel as shown in the movie Aliens. (20th Century Fox)

Earlier this week we learned about worms taken from Siberian permafrost that have been revived after being frozen for 46,000 years. In the Scientific American, the co-author of the study with these finding, cell biologist Teymuras Kurzchalia, stated, “The radiocarbon dating is absolutely precise, and we now know that they really survived 46,000 years.”

So what does this mean for life that is somewhat more complex than a worm? Given that the findings are still being challenged, maybe nothing. Yet, if true, it may say something about life on this planet, life on other planets, and human life spans should we want to travel to distant locations. While such hibernation is a staple of science fiction, it seems to be a bit closer to reality with this study out there.

The European Space Agency (ESA) and others are already looking into human hibernation for space travel. In one ESA press article from 2019 regarding hibernation for travel to Mars, we read how one study concluded the following:

Not only does hibernation have positive psychological effects, it also allows for a complete mission and system re-design, optimised for human hibernation, which could minimise both mass and cost.

I think the “cost” point may be the key decider on this distant travel matter. Besides, how long can you play “I see a red star” before you go mad?

Travel to Moon and Mars Not Most Important Missions for the Public

Posted on by onespaceman2000

While both Buzz Aldrin and I believe that lunar and Martian colonies are important, it would appear the public has other ideas about NASA’s priorities. The graphic above shows in a recent Pew Research Center study indicates the more Americans are interested in monitoring the Earth’s climate as well as watching for asteroids.

Even finding exoplanets that could support life seems to be more important than occupying local moons and planets. I am not sure how that would help us now if we want to spread the risk of living on one planet, as some propose. We are nowhere near sending a probe to exoplanets, let alone getting humans there.

The study has quite a bit to ponder, including:

  • 58% of U.S. adults believe it is essential to include the use of human astronauts in the U.S. space program, while 41% say astronauts are not essential;
  • Some 44% of Americans have a great deal of confidence private companies will make a profit in their space-related ventures;
  • As the public considers the possibilities ahead for ordinary citizens to orbit the Earth in a spacecraft, more Americans say they would not want to orbit the Earth than say they would (58% to 42%); and
  • About seven-in-ten Americans (72%) say it is essential for the U.S. to continue to be a world leader in space exploration, and eight-in-ten (80%) say the space station has been a good investment for the country.

I am not sure the survey shows a lot of consistency in the answers, but this can be a difficult topic at the outset. NASA should just be worried if Americans saw no reason for a space program, which does not seem to be the case. As noted above, the majority of Americans want a strong space program. Let’s see if that helps with the ongoing congressional budget discussions.

Pic of the Week/A Day in Astronomy: Moon Landing

Posted on by onespaceman2000
Image (Credit): Astronaut Edwin E. (Buzz) Aldrin Jr., Lunar Module (LM) pilot, climbs down the LM ladder, preparing for his first steps on the Moon. (NASA)

On this day in 1969, the Apollo 11 crew stepped on the Moon for the first time, showing that mankind could actually travel to another world. The image above shows Astronaut Buzz Aldrin preparing the step on the Moon as the second human to ever walk on the lunar surface.

Buzz Aldrin has plenty of quotes related to his Moon mission and life in general, but I like his quotes about our next trip to Mars, like this one:

When we set out to land people on the surface of Mars, I think we should as a nation, as a world, commit ourselves to supporting a growing settlement and colonization there. To visit a few times and then withdraw would be an unforgivable waste of resources.

NASA’s Artemis mission is retracing Buzz Adrin’s steps, which is a good sign given that we visited only a few times and then withdrew for decades. Let’s hope Artemis gets us settlements on both the Moon and Mars.