NASA’s James Webb Space Telescope is “fully deployed,” according to the agency’s science administrator Thomas Zurbuchen — and that’s certainly a reason to celebrate after decades of hard work and a ten billion dollar price tag.

But the massive space observatory isn’t out of the woods just yet. As it spins around the Sun in a chaotic orbit, it will likely encounter plenty of space debris along the way — and an impact, its team says, is likely inevitable.

“Some small impacts from micrometeorites will happen,” NASA Goddard Space Flight Center scientist Michelle Thaller said during a livestream over the weekend. “You know, over the lifetime of the mission there will be some damage to the mirrors of the telescope.”