Despite what you have been told, general relativity has not yet been overturned, modified, or revolutionized.

The mysterious "dark flow" is still there according to follow-up observations and it's presence is still a mystery.

Roger Penrose is in no mood for exotic theories. In fact, he thinks its latest papers should be junked.

If our universe is one of many, just how many others are out there? A duo of physicists try to answer that question. Well, sort of...

At the end of the universe, black holes will be the only things left and they will define what happens in the cosmos for countless eons.

Young Earth creationists demand scientists produce the "missing antimatter" from the Big Bang or scrap the theory altogether.

If time travel is possible, what direction would be the easiest to visit and have the fewest limitations?

No matter what we try, we can't get around the need for dark matter in our equations and observations.