Skip to main content
  1. Home
  2. Space
  3. Emerging Tech
  4. News

ESA locking astronauts in an underground cave … for training

Add as a preferred source on Google

European Space Agency (ESA) astronauts have a unique training system. Not only do they train hundreds of miles above the surface of the earth, they also travel hundreds of miles down into the deep, dark recesses of our wonderfully exotic planet. This latter training is part of a caving course that seeks to replicate the disorienting conditions present on a space expedition, as well as to teach astronauts how to work together when faced with an alien environment.

Participants in this unusual CAVES (Cooperative Adventure for Valuing and Exercising) training course hail from a variety of countries and include ESA astronaut Pedro Duque, Japanese astronaut Aki Hoshide, Chinese astronaut Ye Guangfu, Russian cosmonaut Sergei Korsakov, and NASA astronauts Jessica Meir and Richard Arnold. These six space explorers will enter the dark underground caves, which will test their ability to survive without natural light and the sounds that are so familiar to surface dwellers. This harsh environment will push the astronauts out of their comfort zone and force them to assign leadership roles, follow orders, and work together as a team.

Recommended Videos

The caving course will do more than just train astronauts for space exploration; it also will be used to test new equipment that will allow the team to camp deeper into the caves than ever before. These technological advancements make it possible for the astronauts to explore a new 3D mapping system that uses photo-based measurements. They will be able to communicate using a novel communication system capable of transmitting through 800 kilometers of rock.

The astronauts will begin a weeklong orientation on June 24 before heading underground on July 1. They will remain underground for six nights, where they will work on their teamwork and communication skills. You can follow their progress on the ESA CAVES twitter account or the CAVES blog.

Kelly Hodgkins
Kelly's been writing online for ten years, working at Gizmodo, TUAW, and BGR among others. Living near the White Mountains of…
NASA built the Roman Space Telescope to study dark matter, but it can also help protect Earth from killer asteroids
The Nancy Grace Roman Space Telescope wasn't built to hunt asteroids, but it turns out to be great at it.
Nancy Grace Roman space telescope.

NASA is about to launch a telescope built to unlock some of the universe's biggest mysteries, and it turns out that same design could help protect Earth along the way.

The Nancy Grace Roman Space Telescope is set to launch from Kennedy Space Center on August 30, 2026, with a primary mission focused on studying dark matter and dark energy - the invisible forces shaping galaxies and cosmic expansion. Researchers now say its unique design also makes it unexpectedly effective at spotting dangerous asteroids headed our way (via MIT Technology Review).

Read more
Space is becoming Bezos and Musk’s next data center site, and we have every reason to worry
The AI boom is coming for the night sky
How Vast's space station will look in orbit.

AI data centers already consume vast amounts of electricity and water on Earth, so Silicon Valley has begun looking somewhere considerably more spacious... literally.

Elon Musk's SpaceX and Jeff Bezos' Blue Origin, along with several other companies, have proposed enormous constellations of satellites designed to operate as orbital data centers. However, environmental groups and former space officials are now warning that putting them into orbit at the proposed scale could have severe consequences for Earth's atmosphere and the night sky.

Read more
The first possible exomoon is here, and it makes our Moon look hilariously tiny
Scientists may have found the first exomoon, except this one is the size of Jupiter
This artist’s concept depicts a potential volcanic moon between the exoplanet WASP-49 b, left, and its parent star. New evidence indicating that a massive sodium cloud observed near WASP-49 b is produced by neither the planet nor the star has prompted researchers to ask if its origin could be an exomoon.

We have already discovered more than 6,000 planets outside of our immediate neighborhood. Yet, finding a moon orbiting one of those distant worlds has proved considerably harder. Astronomers may finally have something close to the real deal, but this particular object stretches the word “moon” almost beyond recognition.

Using the European Southern Observatory’s Very Large Telescope in Chile, researchers detected strong evidence for a moon-like object in the CD-35 2722 system. Further observations are still necessary to confirm the discovery, but it could become the first confidently detected natural satellite outside our solar system. There is still one tiny complication though. This moon is apparently massive.

Read more