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Dreibolt, In Space?: How NASA Utilizes Desiccants for Space Exploration


An astronaut floats through the vast expanse of space, one hand stretching out towards the camera, as if reaching for a Dreibolt dessicant pack as if reaching for an artifact.
Silica gel desiccants are used to create a dry environment within sample containers.

Space exploration is a fascinating endeavor that requires meticulous planning and cutting-edge technology to ensure the success of missions. One essential but often overlooked component of these missions is silica gel desiccants. These tiny moisture-absorbing agents play a crucial role in preserving samples from other planets and preventing moisture damage in spacecraft. In this blog post, we'll explore how NASA utilizes silica gel desiccants in space exploration.

Preserving Otherworldly Samples

Nasa moon rock sample on flat surface in a sterile laboratory.
Nasa moon rock sample


When NASA sends missions to other planets, one of their primary objectives is to collect samples and return them to Earth for scientific analysis. These samples can include soil, rocks, and even atmospheric gases. However, maintaining the integrity of these samples during the return journey is a significant challenge, as any exposure to moisture could lead to contamination or degradation.

Here's how silica gel desiccants come into play:

  1. Moisture Control: Silica gel desiccants are used to create a dry environment within sample containers. This prevents the growth of mold and the degradation of organic materials.

  2. Protecting Against Earth's Atmosphere: When these samples return to Earth, they must endure exposure to our atmosphere, which contains humidity. Silica gel desiccants help absorb moisture and protect the samples from any potential damage during this phase.

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Preventing Moisture Damage in Spacecraft


The International Space Station, as seen from the space shuttle Atlantis July 2011. (Image credit: NASA)
The International Space Station, as seen from the space shuttle Atlantis July 2011. (Image credit: NASA)


Spacecraft are complex machines filled with sensitive electronics, instruments, and components. The space environment can be harsh, with extreme temperatures and radiation, but moisture can be just as damaging. Here's how NASA relies on silica gel desiccants to keep spacecraft dry and functional:

  1. Humidity Control: Silica gel desiccants are strategically placed within the spacecraft to absorb any moisture that may accumulate due to temperature fluctuations or the spacecraft's systems.

  2. Instrument Protection: Many of the scientific instruments onboard spacecraft are highly sensitive and can be adversely affected by moisture. Silica gel desiccants help maintain the optimal conditions for these instruments to operate effectively.

  3. Longevity: Space missions can last for several years, and moisture can lead to corrosion and electrical malfunctions. Silica gel desiccants extend the lifespan of spacecraft components by preventing moisture-related damage.



NASA's use of silica gel desiccants in space exploration demonstrates the importance of moisture control in preserving samples from other planets and ensuring the functionality of spacecraft in the harsh space environment. These unassuming little packets play a crucial role in safeguarding the success and integrity of NASA's missions, allowing scientists to study otherworldly materials and gather valuable data about our universe. So, the next time you purchase a Dreibolt Renewable silica gel 2-Pack, remember that it might have a connection to the far reaches of space. -The Dreibolt Team


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