Some crawled out of the ocean and then several million years later, crawled right back in.
Even animals that appear this color may be playing tricks on you.
“They were likely able to crush bone.”
According to the team, the object likely came from the direction of Sagittarius, and will depart our Solar…

The answer is right under your nose. Obviously.
It’s not exactly a force field, but it does offer our planet some protection.