like the earth smaller then the sun but it orbits around the sun tho
A thermometer, a barometer, a sling psychrometer, and a rain guage
1. Galaxies seem to be moving away from us which can support Big Bang Theory.
2. The abundance of Helium and Hydrodgen also support the Big Bang theory!
Personlly I do not believe in the big bang theory but if you need more reasons please comment! :-)