[lepton]

Interesting. Science changes as new information is found. What a novel idea....oh, wait, thus has it always been.

And they are getting closer to reconciling the calculated age of the universe with the calculated ages of stars. Cool.

[RightWhale]

When the universe was 1.5 billion years old, during Einstein's day, earth was also 1.5 billion years old. To Einstein that was kind of a problem.