Is there any cool facts you could tell me

Question: Is there any cool facts you could tell me
- Keywords:
  fact,
  research field
Asked by KSMLegit to Claire, Ryan, Mako on 25 Jun 2015.
- Ryan Cheale answered on 25 Jun 2015:
  
  If we replaced our sun with a blackhole of equal gravity we would still orbit it like the sun it would just be very dark and cold!!

Question: Is there any cool facts you could tell me