Question

How are the scientist so accurate about there research of the universe

Answer 1

As their researches are supported by scientific data which is quite sophisticated for general public , so a normal human being has no chance of questioning their research .

And as for some adequately educated people , like B.Sc s , M.Sc. s , and other scholars it is hard for them to gather the equipments and money to test the legitimacy of their research.

The research done is based on some previously made assumptions , which were neither proved

nor denied , hence approved unequivocally .

So you see , not everyone gets (or chooses) to study and know the extent of our universe , understand its basics , hence the researches done are not something which you can easily doubt without a firm base.