The Unobservable Universe
Help
What is a light year?
a unit of astronomical distance equivalent to the distance that light travels in one year
How many stars are born in our galaxy each year?
Approx. 3
Is the expansion of the universe accelerating or decelerating?
The expansion of the universe is accelerating
Unlock this slideshow and over 2 million more with Baamboozle+
Try slideshows
Your experience on this site will be improved by allowing cookies.
Allow cookies