Space Stories: Challenger Debris Located, Chinese Mars Engine, and Risky Trip to the Space Station

Posted on by onespaceman2000
Image (Credit): Space shuttle Challenger landing at Edwards Air Force Base in California on Nov. 6, 1985. (NASA)

Here are some recent stories of interest.

—NASA: “NASA Views Images, Confirms Discovery of Shuttle Challenger Artifact“

NASA leaders recently viewed footage of an underwater dive off the East coast of Florida, and they confirm it depicts an artifact from the space shuttle Challenger. The artifact was discovered by a TV documentary crew seeking the wreckage of a World War II-era aircraft. Divers noticed a large humanmade object covered partially by sand on the seafloor. The proximity to the Florida Space Coast, along with the item’s modern construction and presence of 8-inch square tiles, led the documentary team to contact NASA.

—Space.com: “China Just Test-fired the Engine for its Huge New Moon and Mars Rocket“

China has completed a first hot fire test of a fully-assembled powerful new engine that could power new launch vehicles and boost the country’s space capabilities. The full system test of the 500-ton-thrust, dual nozzle kerosene-liquid oxygen staged combustion cycle engine took place on Nov. 5, marking a milestone for the rocket engine. 

—Phys.org: “Cargo Ship Reaches Space Station Despite Jammed Solar Panel“

A Northrop Grumman capsule delivered several tons of supplies to the International Space Station on Wednesday despite a jammed solar panel. The shipment arrived two days after launching from Virginia. Only one of the cargo ship’s two round solar panels opened following liftoff. Flight controllers tried in vain to open the stuck panel, but managed to draw enough power for the flight with just one.

Gift Ideas: Lego Lunar Research Base

Posted on by onespaceman2000
Image (Credit): Lego Lunar Research Base playset. (Lego)

While we await the Artemis III crew landing on the Moon and related lunar base, you might want to create your own mission with the Lego Lunar Research Base (shown above), which has “NASA-inspired” details. The playset has almost 800 Lego pieces, so you can build it yourself (to NASA specs, of course).

The playset comes with a “… lunar lander, VIPER rover and a domed accommodation module with laboratories, garage and air lock, plus 6 astronaut minifigures. I’m assuming the rocket that gets the astronaut minifigures to the Moon is sold separately.

And below is the Lego International Space Station is you are looking for something more traditional (and less expensive).

It’s great to see that Lego is allowing kids to build their own space missions at home.

Image (Credit): Lego International Space Station playset. (Lego)

Some of you may have played with Star Wars and Star Trek sets as kids, but at least these latest Lego set have a ring of credibility. Star Wars helped you destroy the galaxy, whereas Star Trek seemed more interest in exploration and at least had the veneer of Artemis CXXV.

I checked on whether Chinese and Russian kids with have their own space playsets and found the Russian Roscosmos Soyuz MS spacecraft (still a concept) and China’s Jiuquan Satellite Launch Center (made by a Lego copycat), both shown below.

Image (Credit): Lego version of the Russian Roscosmos Soyuz MS spacecraft. (Lego Ideas)
Image (Credit): Sembo Blocks version of the Jiuquan Satellite Launch Center. (http://www.whatsonweibo.com)

The Jiuquan Satellite Launch Center playset comes with a Long March 2F rocket and an authentic warning sign stating, “Those stealing secrets will be caught, once they’re caught they will be killed [decapitated].”

Maybe even reality is not always the best model for play.

Extra: You can find more Lego space models at the NASA gift shop.

Space Stories: A New Martian Crater, the Final Piece of China’s Space Station, and the Falcon Heavy Flies Again

Posted on by onespaceman2000
Image (Credit): Recent impact crater on the surface of Mars. It was formed on December 24, 2011 in the Amazonis Planitia region. (NASA/JPL-Caltech/University of Arizona)

Here are some recent stories of interest.

—NASA: “NASA’s InSight Lander Detects Stunning Meteoroid Impact on Mars“

NASA’s InSight lander recorded a magnitude 4 marsquake last Dec. 24, but scientists learned only later the cause of that quake: a meteoroid strike estimated to be one of the biggest seen on Mars since NASA began exploring the cosmos. What’s more, the meteoroid excavated boulder-size chunks of ice buried closer to the Martian equator than ever found before – a discovery with implications for NASA’s future plans to send astronauts to the Red Planet.

—Aljazeera: “Final Module Docks at China’s ‘Heavenly Palace’ Space Station“

The final module required for the completion of China’s Tiangong space station has successfully docked with the core structure, state media say, a key step in Beijing’s ambitious plans for space exploration…The module – named Mengtian, which means “heavenly dream” – was launched on Monday on a Long March 5B rocket from the Wenchang launch centre on China’s tropical island of Hainan, CCTV reported.

—Wall Street Journal: “SpaceX’s Falcon Heavy Rocket, World’s Most Powerful Rocket, Launches After Three-year Hiatus“

SpaceX’s Falcon Heavy — a towering, three-pronged vehicle that is the most powerful operational rocket in the world — returned to the skies on Tuesday for the first time since mid-2019. The rocket launched at 9:41 a.m. ET from NASA’s Kennedy Space Center in Florida, hauling satellites to space for the US military in a secretive mission dubbed USSF-44.

Space Stories: Approaching Lucy, Chinese Space Ambitions, and Conan the Bacterium

Posted on by onespaceman2000
Image (Credit): Image from NASA’s Lucy spacecraft showing the Earth and Moon from 890,000 miles away (look closely – the moon on the left is a very pale dot). (NASA/Goddard/SwRI)

Here are some recent stories of interest.

—NASA.gov: “NASA’s Lucy Spacecraft Captures Images of Earth, Moon Ahead of Gravity Assist“

On October 13, 2022, NASA’s Lucy spacecraft captured [the above] image of the Earth and the Moon from a distance of 890,000 miles (1.4 million km). The image was taken as part of an instrument calibration sequence as the spacecraft approached Earth for its first of three Earth gravity assists. These Earth flybys provide Lucy with the speed required to reach the Trojan asteroids — small bodies that orbit the Sun at the same distance as Jupiter. On its 12 year journey, Lucy will fly by a record breaking number of asteroids and survey their diversity, looking for clues to better understand the formation of the solar system.

—SpaceNews.com: “China Considering Mission to Ceres and Large Dark Matter Space Telescope“

The Chinese Academy of Sciences is considering potential missions including a Ceres orbiter and a huge telescope to hunt for clues about the nature of dark matter. More than 20 candidates are vying for funding for further study under the Chinese Academy of Sciences Strategic Priority Program on Space Science, also known as the New Horizon Program, and are currently undergoing evaluation.

—Space.com: “Extremophiles on Mars Could Survive for Hundreds of Millions of Years“

One of Earth’s toughest microbes could survive on Mars, lying dormant beneath the surface, for 280 million years, new research has shown. The findings increase the probability that microbial life could still exist on the Red Planet. Deinococcus radiodurans, nicknamed “Conan the Bacterium,” is one of the world’s toughest microbes, capable of surviving in radiation strong enough to kill any other known life-form. Experiments have now shown that if Conan the Bacterium or a similar microbe existed on Mars, it could survive 33 feet (10 meters) beneath the surface, frozen and dried out, for 280 million years.

Study Findings: Fusible Mantle Cumulates Trigger Young Mare Volcanism on the Cooling Moon

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Image (Credit): The Moon’s snakelike Schroeter’s Valley, believed to have been created by lava flowing over the surface. (NASA/Johnson)

Science Advances abstract:

[China’s] Chang’E-5 (CE5) mission has demonstrated that lunar volcanism was still active until two billion years ago, much younger than the previous isotopically dated lunar basalts. How the small Moon retained enough heat to drive such late volcanism is unknown, particularly as the CE5 mantle source was anhydrous and depleted in heat-producing elements. We conduct fractional crystallization and mantle melting simulations that show that mantle melting point depression by the presence of fusible, easily melted components could trigger young volcanism. Enriched in calcium oxide and titanium dioxide compared to older Apollo magmas, the young CE5 magma was, thus, sourced from the overturn of the late-stage fusible cumulates of the lunar magma ocean. Mantle melting point depression is the first mechanism to account for young volcanism on the Moon that is consistent with the newly returned CE5 basalts.

Citation: Su, B., Yuan, J., Chen, Y., et al. Fusible mantle cumulates trigger young mare volcanism on the cooling Moon. Science Advances (2022).
https://doi.org/10.1126/sciadv.abn2103

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