Stephen Hawking: Explore space for humanity's sake

Stephen Hawking, the British physicist who spent his career decoding the universe and even experienced weightlessness, is urging the continuation of space exploration—for humanity's sake.

Scientists suggest spacetime has no time dimension

(PhysOrg.com) -- The concept of time as a way to measure the duration of events is not only deeply intuitive, it also plays an important role in our mathematical descriptions of physical systems. For instance, we define an ...