Dimensions of the Universe

What is the size of the universe? Is the universe covered? Are there other universes?

Science and Technology

To remember Krishna, does a scientist need to give up his occupation? And while working for Krishna, should we neglect all the recent technology?

Can we remedy the frightful situation of death in this world, maybe by scientific advancement?

Do we know more in this age than what is in the Vedas?

How did the universe come into being?

Can we become something else?

Can the "fittest" really survive?

Are some species really extinct?