To me these look like constructed channels of some sort leading into a central control hub or population center..the scientist themselves can't
explain it and didn't offer any obvious reasoning (meteor impact) maybe they are scared to postulate what we all know...aliens are on Mercury
Yea i seen that already but come on could anything really have ever (or ever) existed on Mercury while its at its current distance from the sun?
It would be like living in a furnace.