Where did the elements that make up our bodies come from? How fast is the universe accelerating? A pair of dead stars, among the weirdest scientists have seen, could point toward the answers.
What if the Earth, the galaxy, and all the galaxies near us were enclosed in a weirdly empty bubble? This scenario could resolve some longstanding questions about the nature of the universe.
Dark energy is driving the accelerating expansion of the universe. No one knows what it is.
It’s the largest void known to science.
The results of a new study are close, but slightly faster than, the generally accepted rate.