Dimensions of the Universe

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

Science and Technology

Does a scientist need to give up his occupation of doing science to serve Krishna? And do we neglect all the technology that has been developed?

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?