In 1971 Lennon sang:
Imagine there's no heaven
It's easy if you try
In 2011 Stephen Hawking wrote:
There is no heaven or afterlifeIt would be difficult to determine the motivation for John Lennon other than to say he was a leader in the religious counter-rEvolutionary movement in the 1960s.
Since Hawking is a famous scientist, he would presumably have some evidence to back up his claim, or has he simply crossed the wall of separation between church and science without a hall pass? Speaking of presumptions, Hawking is on dangerous ground to have so definitively dismissed Heaven, when in his own field of research, he is still searching vainly for 96% of the universe.
Jesus promised: "I go to prepare a place for you...that where I am, there you may be also." - John 14:2,3. It's also better to earn Heavenly currency than to focus on building up earthly wealth:
"Don't store up treasures here on earth, where moths eat them and rust destroys them, and where thieves break in and steal. Store your treasures in heaven, where moths and rust cannot destroy, and thieves do not break in and steal. Wherever your treasure is, there your heart will also be." - Matthew 6:19-21
Drug-enhanced rockers and wayward cosmologists may say there's no Heaven, but don't bet your eternal life on the absence of Heaven...or Hell.