[The Cajun]

Considering it has other not so bright spots, probably just reflective ice that will eventually sublimate into space and dim like the rest.

An Occam's Razor thing.

[Red Badger]

Read a Sci-fi novel once, can’t remember the author, since I read so many, where the first manned Mars mission turned into a rescue mission of an alien that was trapped on one of Mars moons. The alien was part of a duo that had been stationed on the moon and was supposed to protect Earth from incoming comets and asteroids. The elder of the two aliens died and the younger one didn’t know what to do, so he sent out telepathic messages to people on Earth and the space craft to come and get him. The Earth people thought they were going nuts....................