was related to the star's magnitude, not distance. Yet magnitude itself allowed you to calculate distance. Leavitt published her findings in 1912 -- in a chart of 25 cepheid periods and their ...

By intense observation of a certain class of variable star, the cepheids, Leavitt discovered a direct correlation between the time it took a star to go from bright to dim to how bright it actually ...

White House press secretary Karoline Leavitt cheekily insinuated that President ... However, the door is open for Sanders to wow and shake up the depth chart if he adapts quickly and outperforms ...

"Another week! Here we go!" she wrote. It's claimed Leavitt plans to make changes to the seating chart in the White House's briefing room, which may well cause chaos. Usually the White House ...

White House press secretary Karoline Leavitt cheekily insinuated that President Donald Trump might have been the reason Shedeur Sanders was drafted by the Cleveland Browns this weekend.