A new study found that certain sitting activities can boost cognitive function. Here are the best (and worst) sedentary ...

Ice melt could delay the dreaded negative leap second Humans track time in seconds ... necessary "has never been foreseen or tested." "We do not know how to cope with one second missing.

According to Yevgeny Dudorov, in the future, robots will be able to complete the tasks that humans never perform ... to perform extravehicular space activities, Yevgeny Dudorov, executive director ...