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The retro tool for stranded astronauts

(Credit: Nasa)

Editor's Picks

Three surveillance cameras mounted on a pole, with a warning sign beneath them (Credit: Serenity Strull/ BBC)

How to watch the cameras that watch you

By Thomas Germain

A close up of a smiling mouth (Credit: Getty Images)

How to look after your oral microbiome

By Jasmin Fox-Skelly

People watch waves crashing into seaside houses at Mondos Beach, California, during a super El Niño event in 2016, with palm trees in the background (Credit: Getty Images)

The Pacific warming patterns warping US weather

By Isabelle Gerretsen

A close-up of a tick crawling on some light-coloured clothing (Credit: Getty Images)

The search for a vaccine against Lyme disease

By Brianna Abbott

(Credit: Getty Images)

The Viking word behind American independence

By Sophie Hardach

Earth

A whale shark swims in bright blue water, surrounded by small fish (Credit: Jonathan Irish)

The giant shark that seems to appear from nowhere

By Matthew Ponsford

A raccoon climbs out of a hole in a brick wall (Credit: Alamy)

The true story of Germany's rampant raccoons

By Matthew Ponsford

A leafcutter ant carries a section of leaf along a branch (Credit: Getty Images)

Want to get better at making decisions? Ask an ant

By Sofia Quaglia

A herring gull steals a croissant from a table (Credit: Getty Images)

How to stop seagulls stealing your food

By Katherine Latham

Psychology

1

When it's good (and when it's bad) for you to laugh at yourself

Earth

2

They bought a house in LA. The neighbours are bears and won't stay out of the pool

Astronomy

3

In the otherworldly Chilean desert, this huge telescope could reveal alien life

Earth

4

The world's mysterious mangrove forests captured in 13 striking images

Health

5

There's something unique about eating together that's good for us

Technology

6

'It's very counterintuitive': The quantum batteries that upend the rules of charging

Technology

7

'Security by antiquity': Why older tech is sometimes safer from hackers

Health

8

'You're fully accepted': Being nude in public can make us feel better about our bodies

Health

9

The sleep habits that help you wake up without an alarm