Neptune was discovered on September 23, 1846. They discovered it while they were studying Uranus.
Do you mean helium? Helium is an element, so it's made of .... helium!
helium in a jar diff from helium atom
He- Helium. He- Helium.
Helium
In 1868 by Pierre Janssen.
it was discoved in July 19,1799
Howard Carter discoved tutu carmoon
greek
europeans
j cole
by a bunch of baboons
who discoved endosulphan
no one
Dr gordon
Vitus Bering.
it has always been known