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solar power

An artist's impression of Planet Ten

Space

Weird orbits hint 'Planet Ten' might lurk at solar system edge

Astronomers studying icy objects in a distant region called the Kuiper belt say an unconfirmed planet with similar mass to Mars could be responsible for tugging them out of alignment

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dancers

Humans

8 Minutes: How to dance the speed of light

Culture

Jupiter

Space

How Jupiter split the asteroid belt in two shows its great age

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Photo of comet 67P/Churyumov–Gerasimenko taken by the Rosetta spacecraft

Earth

The mystery xenon in Earth’s atmosphere came from icy comets

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General relativity passes test at Milky Way's central black hole

Space

General relativity passes test at Milky Way's central black hole

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sun

Space

NASA mission into sun’s atmosphere named after astrophysicist

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Saturn’s moons could reassemble after a cosmic smash-up

Space

Saturn’s moons could reassemble after a cosmic smash-up

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Diagram of the shape of a synestia – like a red blood cell or a doughnut

Space

Huge impact could have smashed early Earth into a doughnut shape

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Brendan Cowell as Galileo, Alex Murdoch as Little Monk

Space

µþ°ù±ð³¦³ó³Ù’s Life of Galileo pumped up for the 21st century

Culture

Titan’s riverbeds show a terrain built more like Mars than Earth

Space

Titan’s riverbeds show a terrain built more like Mars than Earth

Saturn’s largest moon resembles Earth with its rivers and mountains, but it came by its topography very differently - and could still be active today

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Physics

What the end of the atomic renaissance means for nuclear power

Insight

Space

Microbes might thrive after crash-landing on board a meteorite

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Space

Stars can start shining at a smaller mass than we thought

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Earth

Odds on: Five scientific theories decided by wager

Features

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