This time-lapse clip shows the construction of the Smithsonian’s newest museum, National Museum of African American History and Culture, which opens Saturday. President Barack Obama is expected to ...

What does 10 years mean to our 4.6 billion-year-old sun? Probably about as much as the last millionth of a second meant to you. Still, every decade that our old sun burns on is a decade of turbulent, ...

Time-lapse videos are created by stitching together a series of photos captured during a period of time (mostly hours) and then created into sped-up footage. Back in the day, time-lapse videos were ...