Science · The Universe

Gravitational Waves and The Expansion of the Universe

https://www.space.com/gravitational-waves-may-solve-hubble-constant.html?utm_source=notification

Excerpt:

Analyzing ripples in the fabric of space and time created by pairs of dead stars may soon solve a cosmic mystery surrounding how quickly the universe is expanding — if scientists are lucky.

That’s the verdict of a new study, which may also shed light on the ultimate fate of the universe, the researchers who worked on it have said.

The cosmos has continued expanding since its birth about 13.8 billion years ago. By measuring the present rate of the universe’s expansion, known as the Hubble constant, scientists can deduce the age of the cosmos and details of its current state. They can even use the number to try to learn the fate of the universe, such as whether it will expand forever, collapse upon itself or rip apart completely.

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