The universe may actually be curved, like a giant inflated balloon, a new study claims. A study published on Monday in the journal Nature Astronomy examines data from the cosmic microwave background ...

Everything we think we know about the shape of the universe could be wrong. Instead of being flat like a bedsheet, our universe may be curved, like a massive, inflated balloon, according to a new ...

Imagine jetting out into the universe. You sail past Mars, Neptune, and Pluto, far out past the milky way and into the frothy nothingness of space. What might you find if you travelled far enough?

If you were inside a spaceship traveling in a straight line out of our solar system, where would you end up? Would you keep getting farther from home, or would you slowly loop around and end up where ...