杏吧原创

Regulars

Hair-raising research explores the north-south divide on your scalp

Researchers hint that the prevalence of counterclockwise hair whorls in people living in the southern hemisphere could be down to environmental factors - the Coriolis force, perhaps?

Regulars
20 July 1969. Neil Armstrong?s photos of Buzz Aldrin?s first steps on the Moon. This was what it all boiled down to in the end, even after the unprecedented feats of rocketry and all the extraordinary technical innovation which had safely flown two astronauts to a destination a quarter of a million miles from home: the basic human act of walking.

Space

Walking on the moon: candid photos from astronaut Tim Peake鈥檚 new book

Regulars
Split view of a pod of sperm whales in a social group showing the sky and below the waterline, north western Mauritius.; Shutterstock ID 742662229; purchase_order: -; job: -; client: -; other: -

Why don鈥檛 marine mammals like whales get 鈥榯he bends鈥�?

Regulars
The Supermoon rises over houses in Olvera, in the southern Spanish province of Cadiz, July 12, 2014. Occurring when a full moon or new moon coincides with the closest approach the moon makes to the Earth, the Supermoon results in a larger-than-usual appearance of the lunar disk. REUTERS/Jon Nazca (SPAIN - Tags: SOCIETY CITYSCAPE TPX IMAGES OF THE DAY) - GM1EA7D0FC401

When was it realised that moonlight is reflected sunlight? Part 2

Regulars

How do dogs recognise that another animal is also a dog? Part 3

Regulars
2K6A82T Artist's concept of astronauts and human habitats on Mars.

This week鈥檚 new questions

Regulars

Tom Gauld: Stay safe this Halloween with our helpful diagram

Regulars

Twisteddoodles: The figure in white moaned…

Regulars
Planet Earth III book - page 11 The sharks, though, are in for a surprise because the adult seals mob them instead of fleeing (opposite bottom).

Life

See a mob of seals save their pups from a shark in Planet Earth III

Regulars
F3HB7N Underwater view of two technical divers using rebreathers device to locate shipwreck, Lombok, Indonesia

Mathematics

How spiral search patterns and lateral thinking cracked our puzzle

Rob Eastaway and Brian Hobbs take over our maths column to reveal who solved their puzzle and won a copy of their New 杏吧原创 puzzle book, Headscratchers

Regulars

Why do fallen trees grow stems vertically from a horizontal trunk?

Regulars

What makes galaxies spin in a certain direction?

Regulars

Why can鈥檛 we conjure up smell and touch in our heads? Part 3

Regulars

This week鈥檚 new questions

Regulars