This Physicist's Ideas of Time Will Blow Your Mind. Is time only in our head? By Ephrat Livni.

Comets Are More Dangerous Than We Thought. Could a comet, not an asteroid, have killed the dinosaurs? By Sean Raymond

Are Black Holes Actually Dark Energy Stars? Why a physicist believes our understanding of black holes is wrong. By Jesse Stone

Nigel Goldenfeld applied condensed matter physics to show evolution was blazingly fast for the earliest life and then slowed down.

Aging Is Reversible - at least in human cells and live mice. Study shows changes to gene activity that occur with age can be turned back.

Detailed images of the anti-aging enzyme telomerase are a drug designer's dream. By Richard Faragher.

Whether it actually is the most important meal of the day, the real emphasis seems to be on keeping weekday breakfast low-key.

If you want to supercharge learning and become smarter, the Feynman Technique might be the best way to learn absolutely anything.

How We'll Forget John Lennon. Our culture has two types of forgetting. By Kevin Berger.

Brain background noise may yield clues to persistent mysteries, giving insights into sleep, aging and more. By Elizabeth Landau