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Will time ever end? The answer lies in the death throes of the cosmos

Physics

Will time ever end? The answer lies in the death throes of the cosmos

The universe might meet its end in a big freeze, a big crunch, or a big rip. But whether time ends with the demise of the cosmos depends on whether it is even real after all

Features

Scientific astronomical background - bright quasar in deep space. Elements of this image furnished by NASA nasa.gov; Shutterstock ID 338122148; purchase_order: -; job: -; client: -; other: -

Space

Cosmic dawn ended 200 million years later than cosmologists thought

News

Have we been measuring the expansion of the universe wrong all along?

Physics

Have we been measuring the expansion of the universe wrong all along?

Features

Controversial claim that the universe is skewed could upend cosmology

Space

Controversial claim that the universe is skewed could upend cosmology

Features

Why I'm choosing dark matter over dark energy - for now at least

Space

Why I'm choosing dark matter over dark energy - for now at least

Comment

Figure 4. Pseudo-color images of all Cepheid-bearing galaxies analyzed in this work.

Space

It’s official – we don’t know how fast the universe is expanding

News

Star trails over the Nicholas U. Mayall 4-meter Telescope on Kitt Peak National Observatory near Tucson, AZ.??

Space

Largest 3D map of the universe contains 8 million galaxies

News

3 of the most exciting space telescopes planned for launch by 2034

Space

3 of the most exciting space telescopes planned for launch by 2034

Features

How the James Webb telescope will rewrite the story of the universe

Space

How the James Webb telescope will rewrite the story of the universe

Features

This artistic impression shows two black holes that are spiralling towards each other and will eventually coalesce.

Space

Merging black holes may create bubbles that could swallow the universe

The area between a pair of large black holes on the verge of colliding could provide the conditions to create dangerous bubbles of "true vacuum"

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Life

Why is the universe just right for life? Blame the multiverse

Features

Physics

Why is there a cosmic speed limit? It could even be why we're here

Features

Physics

Why is the universe intelligible? Things aren’t as clear as we think

Features

Physics

Why is there something not nothing? The big bang isn’t the only answer

Features