Lions and tigers and bears are increasingly becoming night owls because of us, a new study says.
For the millions of Americans who work "nonstandard" shifts—evenings, nights or with rotating days off—the schedule can be especially challenging with children at home.
Once every month, on average, somewhere on Earth a fireball appears out of nowhere and for mere seconds, casts a blinding flash across the sky before it blows up in a thunderous explosion. It happened last Saturday over southern ...
For people like me, light years, the expanding universe and the Big Bang are part of daily language.