(CNN) — You've no doubt heard of Einstein's famous equation E = mc2, and you may well have heard that it means that matter can be converted to energy and back again. That statement is true but incomplete.
(CNN) — A recent astronomical observation of a "cold spot" in the universe is stirring the interest of scientists who are intrigued with an exciting and highly speculative theory that there may be more
NBCBLK A cartoon that draws on Norman Rockwell's iconic painting of an African-American girl defying school segregation to defend Education Secretary Betsy DeVos has sparked a firestorm of criticism. that
When you think about how the Universe got its start, from a scientific point of view, there’s one theory that explains what we see above all others: the Big Bang. But not everyone agrees on what “the Bang”