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extraterrestrial life

Environment

UK and Ireland suffer one of the most severe marine heatwaves on Earth

Waters around the UK and Ireland have been classified as experiencing a category 4 (extreme) marine heatwave, as the North Atlantic ocean continues to see extraordinary warmth

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Humans could bring microbes into space

Space

Space germs: How can we avoid contaminating other worlds?

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Life

1.6-billion-year-old steroids may be traces of earliest complex life

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The Allen Telescope Array

Space

Fake alien message sent to Earth to prepare us for first contact

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Why sending messages to extraterrestrials is controversial

Space

Why sending messages to extraterrestrials is controversial

Comment

Life

The hunt for the South Island k艒kako, New Zealand鈥檚 long-lost bird

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Life

Why the origins of life remain a mystery 鈥 and how we will crack it

Features

Long spined sea urchins underwater on seabed of the Caribbean sea

Life

Surprising culprit found that killed 95% of a sea urchin population

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Giant kelp (Macrocystis pyrifera) grows in a thick, underwater forest near the Channel Islands in California. This area is part of a National Park and is teeming with thousands of marine species.

Life

Kelp forests capture nearly 5 million tonnes of CO2 annually

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Space

What are the prospects for life on the icy moons Europa and Enceladus?

As far as we know, there are three main ingredients required for life: liquid water, an energy source and complex chemistry. Do Europa or Enceladus have them all?

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Life

Mysterious deep-sea holes may be burrows of tiny shrimp-like creatures

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Life

How did multicellular life evolve? Algae and yeast give some hints

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Earth

Oxygen on early Earth may have come from quartz crushed by earthquakes

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Physics

Stephen Hawking's final theorem turns time and causality inside out

Features

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