Shapley correctly argued that the rotation of the spiral nebulae ...

[lidoalex]

Shapley correctly argued that the rotation of the spiral nebulae proved they could not be very distant.
 
  Indicate whether the statement is true or false

Question 2

Physicists have detected hot dark matter particles in terrestrial laboratories, but it is much harder to observe than cold dark matter.
 
  Indicate whether the statement is true or false

[scikid]

Answer to Question 1

FALSE

Answer to Question 2

TRUE

[lidoalex]

Thanks for the timely response, appreciate it

[elyse44]

YES! Correct, THANKS for helping me on my review