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A man gazes at the Milky Way

Space

Figuring out what the Milky Way looks like is akin to a murder mystery

How can we get a picture of the whole Milky Way if we are inside it? Good sleuthing is needed to combine all the clues, writes Chanda Prescod-Weinstein

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Chess pieces

Physics

What is reality? Why we still don't understand the world's true nature

Features

Are dark matter and dark energy related in anything apart from name?

Physics

Are dark matter and dark energy related in anything apart from name?

Comment

The grid of space-time shows the universe and its galaxies

Space

Dark energy: Understanding the mystery force that rules the universe

Features

Melissa Uchida

Video

Why neutrinos could answer some of the biggest questions in the cosmos

Video

Chamkaur Ghag

Video

The hunt for dark matter: Solving the universe's big questions

Video

Michele Bannister

Video

The inside story on 'Oumuamua and other interstellar worlds

Video

'I like a challenge': CERN physicist on the draw of weird antimatter

'I like a challenge': CERN physicist on the draw of weird antimatter

Regulars

Why dark matter's no-show could mean a big bang rethink

Physics

Why dark matter's no-show could mean a big bang rethink

Features

traveller in fog

Physics

Einstein killed the aether. Now the idea is back to save relativity

The luminiferous aether has become a byword for failed ideas. Now it is being revived to explain dark matter and dark energy, and potentially unify physics

Features

Space

Weird galaxies suggest our best understanding of the cosmos is wrong

News

Space

Strange stars that go supernova may be dimming because of dark matter

News

Definition

Dark energy

Definition

Cosmic microwave background