0:00 - Why time is a dimension 1:43 - Speed of light was a problem 3:54 - How Einstein resolved problem 4:54 - Minkowski geometry 6:59 - What're world lines 7:30 - What's a light cone 9:19 - How ...

I will be reinterpreting special relativity!Physics Poem explores various "dubious theories," but in fact, they have a ...

Albert Einstein's theory of relativity is actually two separate theories: his special theory of relativity, postulated in the 1905 paper, The Electrodynamics of Moving Bodies and his theory of general ...

It is one of history’s more irritatingly on-brand coincidences that Albert Einstein was born on Pi Day, as though the universe itself decided that if it was going to manufacture the patron saint of ...

How would our world be viewed by observers moving faster than light in a vacuum? Such a picture would be clearly different from what we encounter every day. "We should expect to see not only phenomena ...

Of the more than 4,500 stars known to have planets, one puzzling statistic stands out. Even though nearly all stars are expected to have planets and most stars form in pairs, planets that orbit both ...

Relativity Space made a flurry of announcements on Wednesday about its past and future. The company is going bigger, and it has already started to do so. In an interview with Ars, the company’s chief ...

When Ryland Grace reaches Tau Ceti in Project Hail Mary, about four years have passed for his human body and fragile psyche. But, because of the effects of time dilation, about 12 to 14 years have ...