The truth is that Larry Page suffered from Sergey Brin envy.
Most C.E.O.s who step down are pushed out, and then they prattle about wanting to spend more time with their families. Larry Page, by contrast, really does want to spend more time with Sergey Brin inventing the future.
They have about $70-80 billion in cash and liquidity.
Google has a research budget of over $10 billion a year.
DARPA's budget is and has been about $3 billion to $3.5 billion per year
NASA has a budget of $15-20 billion per year but 80-90% of it is spent on facilities on the ground and administration and
mostly not for new ground breaking projects. Especially over the last thirty years the $300 billion of the space station and space shuttle
are discounted as mostly not enabling the next transformational thing.
SOURCE - New Yorker, Google Finance