Recent content by ProfessorC

  1. ProfessorC

    Scientists just watched a newfound asteroid zoom by Earth. Then they saw its moon.

    "Existential dread is a key motivator for asteroid discoveries, and planetary defense experts hope that, by surveying nearby space rocks, they will identify a threat with enough time for us to protect ourselves." Exactly (and I mean with all the engineering, celestial mechanics, kinetic energy...