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Shannon Hall

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Physics

Supersized molecules stretch a thousand times further than usual

Space

Mystery object in weird orbit beyond Neptune cannot be explained

Space

Triple signal of 鈥榓lien megastructure鈥� star baffles astronomers

Artist's impression of an alien world

Space

Impossible vanishing stars could be signs of advanced alien life

Physics

Find exomoons by watching how they warp their planet’s light

Life

Is NASA doing enough to look for alien life?

A landscape with a distant person looking up at the night sky where the Milky Way is visible

Space

First mirror-image molecule found in interstellar space

Illustration of a supernovae

Humans

Supernovae 2 million years ago may have changed human behaviour

Map of Mars's methane

Environment

Spongy minerals could explain why Mars gives off methane burps

The Jicamarca Radio Observatory in Peru, where radar echoes in the upper atmosphere were first detected

Environment

Invisible radar wall in the atmosphere caused by UV from the sun

Illustration of a planet losing its atmosphere

Environment

Stars burn away the atmospheres of close-in super-Earths

Artwork of a torus of dust around a black hole

Physics

Dusty doughnut around massive black hole spied for first time