Assuming they were wearing a space suit, probably nothing very different from ordinary decomposition except the lack of insects

Probably because they didn’t know WHICH type of mercury you had. Organic mercury can kill on touch with a single drop. Best not to take chances.

Can somebody help me understand the advantages of passkeys over a password manager? Googling just brings up tons of advertising and obvious self promotion, or ELI5s that totally ignore best passwords practices using managers.

Once you can make it transparent, you can then layer it for actual 3D