They've launched flat plates made of aerogel to capture orbital debris. For example: https://solarsystem.nasa.gov/stardust/home/index.html https://solarsystem.

They've launched flat plates made of aerogel to capture orbital debris. For example: https://solarsystem.nasa.gov/stardust/home/index.html https://solarsystem.nasa.gov/stardust/home/index.html