OriginsExplainer
How Did We “Hear” Gravitational Waves?
LIGO measured tiny changes in distance and opened another way to study the universe.
TOPIC
Universe.
Stories tagged #Universe
OriginsExplainer
Why Do Stars Shine—and Where Did Our Atoms Come From?
A star’s light comes from fusion. Its long history also helps explain the matter that makes planets and people.
OriginsExplainer
What Does the Big Bang Actually Explain?
The hot early universe has strong observational support; the ultimate beginning remains an open question.