If you're a space geek like me, who loves staring up at the stars and wondering what's out there, there's always a lingering set of existential questions that will remain unanswered for a long time: ...

CAPE CANAVERAL, Fla. (AP) — NASA unveiled close-up pictures on Wednesday of the interstellar comet that's making a quick one-and-done tour of the solar system. Discovered over the summer, the comet ...