I have a complicated relationship with sleep. When we’re in the honeymoon stage, I get eight to 10 hours of sleep without ...

UCSF researchers discovered a molecular timer that gets activated in the first days of pregnancy and influences when mice give birth.

In an optical atomic clock, atoms are irradiated with laser light. If the laser has exactly the right frequency, the atoms ...

Scientists developed a highly accurate optical ion clock, improving time measurement precision by 1,000 times.

Apple CEO Tim Cook's daily routine includes waking before 5 a.m., drinking Diet Mountain Dew during the day, and holding ...