Whether the Universe will 'end' at all is not certain, but all evidence suggests it will continue being humanity's cosmic home for a very, very long time.

The Universe – all of space and time, and all matter and energy – began about 14 billion years ago in a rapid expansion called the Big Bang , but since then it has been in a state of continuous change.

First, it was full of a diffuse gas of particles that now make up atoms: protons , neutrons , and electrons . Then, that gas collapsed into stars and galaxies .

Our understanding of the future of the Universe is informed by the objects and processes we observe today.

As an astrophysicist , I observe objects like distant galaxies, which lets me study how stars and galaxies change over time. By doing so, I develop theories t

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