Â鶹´«Ã½

Last Word

Stunning sunset over the Baltic Sea with the sun disappearing below the horizon creating a bright glow on water.; Shutterstock ID 2765860393; purchase_order: -; job: -; client: -; other:

If the sun suddenly disappeared, how long would life on Earth last?

Readers offer different perspectives on the fate of life on Earth should the sun vanish – and there may be hope for some

Regulars
D73X1R An colorful adult midnight snapper swims over the reef

Humans can see water, so can fish see air?

Regulars

What is the optimal way to ice a cocktail? Part 2

Regulars
Atlantic Grey Seal

This week’s new questions

Regulars
B0729K Television and cartoon characters, depicted in the form of toy dolls, making up a window display.. Image shot 03/2008. Exact date unknown.

Why do we feel emotional about fictional characters?

Regulars
A woman falls asleep in a deckchair during the sunny weather on Blackpool beach, in Blackpool, Lancashire, UK, Circa 1985. (Photo by Bryn Colton/Getty Images)

Why don’t we sneeze when we are asleep?

Regulars
Two Astronauts on the Alien Planet Discover Plant Life. Space Travel, Discovery Of Habitable Worlds and Colonization Concept.; Shutterstock ID 1042736296; purchase_order: -; job: -; client: -; other:

Are there plants that could survive as a food source on the moon? Part 2

Regulars

This week’s new questions

Regulars
t

Do all bee species speak the same language?

Regulars

What size of planet would prevent space travel due to gravity? Part 2

Our readers continue to grapple with this question, coming at it from different angles – and also considering how big a planet has to be to retain its atmosphere

Regulars

Are flies following a strategy when they keep hitting windows? Part 4

Regulars

This week’s new questions

Regulars

What is the optimal way to ice a cocktail?

Regulars

What changes will occur on Earth as the moon moves further away? part 2

Regulars