REM (rapid eye movement) and non-REM (NREM) sleep stages contribute to systems memory consolidation in hippocampal-cortical circuits. However, the physiological mechanisms underlying REM memory ...

Lyft's net cash position, rising margins, and partnerships position it favorably versus Uber. Read more on the bullish thesis ...

Why has it taken 50+ years to return to the Moon? A space historian explains the technical, political, and financial ...

Pollan, a science writer, spent five years trying to understand how consciousness worked. The more he learned, the weirder ...