Ved Vyasa
Ved vyasa was the writer of rig veda , in modern day he is known as a scientist as he was the writer of the first source of science in his books. It didnt mean he discovered everything but in that period without the scientific equipmments lets see what all he discovered , he discovered most of things like a layman only the definitions. In one of his scientific information he might have mentioned god , as per now we would ignore that and go to the scientific information he has contributed.
Vyasa on Gravity
One of his information was he told that the Sun has bound the earth and planets via attraction of nature , he used the word gurutva meaning the power of attraction he also told that its for seize of pull.
Vyasa on Creation
According to the Nasadiya Sukta of the Rig Veda, the creation of the universe is described as a cyclical phenomenon that begins anew after billions of years of non-existence. He also stated that at (10:129) the creation of the universe was from nothing but heat.
Vyasa on Atoms
He used the Sanskrit terms Anu (atom) and Paramanu (subatomic particle) to refer to the smallest indivisible units of matter. He also explained the different types of atoms and their combinations, such as Dvyanuka (diatomic molecule), Tryanuka (triatomic molecule), Chaturanuka (tetraatomic molecule) As even the famous scientist The German physicist Werner Heisenberg said that the ideology of quantam physics in India makes sense
These are one of the contributions he has done in our modern science world , most of them in vedas could be discriptive of the informations or him mentioning he is immortal could be his greed but most of the scientific information inspired the western people to prove it and to do more research on it , while these informtion are hidden cause they didnt record most of these while the western people did