China Needs Reusable Rockets

Posted on by onespaceman2000
Image (Credit): The July 24th launch of a Long March 5B rocket transporting China’s second module for its Tiangong space station. (CNS/AFP/Getty Images)

A few days ago debris from China’s Long March 5B rocket landed in the waters off the Philippine island of Palawan. The 1.8 million pounds of rocket brought a module to the Chinese space station. Such problems with Chinese rocket debris is a clear example that China needs to follow both SpaceX and Blue Origin and start using resusable rockets in the future.

NASA’s Administrator was not happy, tweeting:

The People’s Republic of China did not share specific trajectory information as their Long March 5B rocket fell back to Earth.

All spacefaring nations should follow established best practices, and do their part to share this type of information in advance to allow reliable predictions of potential debris impact risk, especially for heavy-lift vehicles, like the Long March 5B, which carry a significant risk of loss of life and property.

Doing so is critical to the responsible use of space and to ensure the safety of people here on Earth.

China has plans to develop reusable rockets for future heavy-lift missions to its space station and the Moon. This would certainly reduce the risk to parties below and hopefully add some efficiencies to the launch process.

Of course, China is not alone when it comes to falling space debris. SpaceX appears to be responsible for debris that landed in Australia last month (see below). While confirmation is still needed, the material appears to be from a SpaceX Dragon capsule.

Image (Credit): One of the panels of the debris found in Australia. (The Guardian/Brad Tucker)

Pic of the Week: Orbital Sunrise

Posted on by onespaceman2000
Image (Credit): SpaceX Dragon capsule approaching the ISS. (NASA)

This week’s image is from the International Space Station (ISS) as it awaits incoming cargo from an uncrewed SpaceX Dragon capsule approaching the station on July 16th. NASA noted that what we are seeing is an orbital sunrise above the Pacific Ocean.

NASA also highlighted the various experiments aboard the Dragon that will be added to the station, including one on extraterrestrial concrete:

Biopolymer Research for In-Situ Capabilities looks at how microgravity affects the process of creating a concrete alternative made with an organic material and on-site materials, such as lunar or Martian dust, known as a biopolymer soil composite. Using resources available where construction takes place makes it possible to increase the amount of shielding.

Space Quote: Elon, It’s All in Your Hands

Posted on by onespaceman2000
Image (Credit): Falcon Heavy rocket. (SpaceX)

“It would be nice to have a bit more free time on my hands, as opposed to just working day and night from when I wake up till when I go to sleep seven days a week. It’s pretty intense.”

-Statement by Elon Musk from last year, as quoted in yesterday’s Wall Street Journal story, “Twitter Suit Tests Musk as He Faces Tesla, SpaceX Hurdles.” The newspaper cites Tesla’s struggles with new car plants in Germany and Texas, which he calls “gigantic money furnaces,” as well as the billions in losses at SpaceX related to the Starship and Starlink programs. Musk can only blame himself for distracting himself and investors with the Twitter deal. He needs to decide what he wants to spend his time on. If it is not SpaceX, maybe he should sell the firm to others who believe in space. That way he has more money in his pocket for his other distracting hobbies.

SpaceX and Russia: Shuttle Swaps

Posted on by onespaceman2000
Image (Credit): Artist’s image of the Boeing Starliner space capsule. (Boeing)

It wasn’t that long ago U.S. astronauts were completely dependent on Russian rockets to get to the International Space Station (ISS). NASA was paying about $60 million per seat on the Soyuz spacecraft. Well, times have certainly changed with SpaceX now ferrying astronauts, Boeing working on its own crewed Starliner capsule, and Northrop Grumman already helping with cargo.

Now NASA is mixing it up. NASA and Russia’s Roscosmos agreed this weak to place astronauts on the Soyuz again and cosmonauts on the SpaceX Dragon spacecraft. Bloomberg reports NASA stated that such mixed crews “ensures there are appropriately trained crew members on board the station for essential maintenance and spacewalks.” In other words, with two launches to the ISS planned in September, a mixing of the crews will ensure some stability in space if only one makes it to the station. Not a bad idea.

Even with all the rhetoric and stunts taking place, it’s nice to see a little bit of common sense prevailing.

SpaceX Starship: Booster Issues

Posted on by onespaceman2000
Image (Credit): Test run of the Starship Booster on May 5, 2022. (SpaceX)

Earlier this week, SpaceX conducted another test of its Starship. However, the booster was damaged by an explosion during a pre-launch test and will now need to be inspected to determine whether it can be used in the inaugural launch of the Starship later this summer.

For more on the Starship, check out the Cool Worlds video titled “Why Starship Could Transform Astronomy.” It argues that reduced launch costs, reduced complexity, and heavier payloads would allow NASA to launch a fleet of telescopes within current budgets. For instance, the larger Starship payload would have allowed NASA to avoid all of the contortions necessary to fold the James Webb Space Telescope into a smaller rocket. The video also argues that SpaceX’s willingness to take risks is something NASA may want to emulate.

These are interesting times with NASA and SpaceX testing new rockets to place astronauts on distant objects. Even if Russia wants to sit this one out, we have a full blown space race underway domestically.