A. Name the star closest to our solar system. B. If you could travel at the speed of light, how long would it take to travel from our solar system to the nearest star?

The current is like a stream or river in the ocean true or false

Which numberline shows the solution to n -3

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?