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astronomy

We may be able to see mountains and valleys on distant worlds

Space

We may be able to see mountains and valleys on distant worlds

If alien planets have canyons and mountains like ours, we may be able to catch a glimpse of them in an exoplanet’s shadow as it passes in front of its star

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Exoplanet transit

Space

Hidden exoplanets could be revealed by echoing light

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Emission nebula Sharpless 2-106

Physics

The ugly, fractured reality of the cosmos deserves our attention

Comment

The universe could be full of more huge stars than we thought

Space

The universe could be full of more huge stars than we thought

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Weird dim star isn't due to alien megastructure - it's just dust

Space

Weird dim star isn't due to alien megastructure - it's just dust

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Black hole

Space

Parallel universes could solve a big problem with black holes

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1845 telescope

Physics

Exploring the universe – and how we found our place in it

Culture

Planet X artwork

Space

Planet X: We are closing in on the solar system's new occupant

Features

Ancient black holes ruled out as source of all dark matter

Space

Ancient black holes ruled out as source of all dark matter

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Bizarre supernova may be powered by hidden disc of dust and gas

Space

Bizarre supernova may be powered by hidden disc of dust and gas

A supernova that stayed bright for over three years seemed impossible, but it could be explained if the explosion is running into dense rings of dust and gas

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Space

Most distant quasar ever seen is way too big for our universe

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Space

Weird tiny galaxies found hiding in Hubble’s Ultra Deep Field

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Space

Mysterious gamma rays in Crab nebula traced to pulsar winds

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Physics

We've found a bunch of dwarf galaxies we thought didn't exist

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