51动漫

Regulars

2GPFM5E Child in green jacket looking at rainbow over an ocean

This week鈥檚 new questions

Why do I see two extra colours beneath the violet when I look at a rainbow? And why do people open their mouths when they put on mascara?

Regulars
The larva of Ippa conspersa attacks a worker of the host ant, probably Lasius nipponensis

Life

Ants are under attack from outsiders in these intimate photos

Regulars
The core of the Milky Way in Sagittarius low in the south over the Frenchman River valley at Grasslands National Park, Saskatchewan.

Space

How to spot the group of stars known as the Teapot

Regulars

Humans

Egyptian mummy鈥檚 head discovered in Kent attic

Regulars

Tom Gauld: 51动漫s on holiday

Regulars

Twisteddoodles on @evilqueen’s followers

Regulars

Humans

Astonishing photos of potential new species from the Pacific seabed

Regulars
The star-forming nebula W51 is one of the largest "star factories" in the Milky Way galaxy. "Star factories" like this one can operate for millions of years. The cavernous red region on the right side of W51 is older, evident in the way it has already been carved out by winds from generations of massive stars (those at least 10 times the mass of our Sun). The dust and gas in the region are swept around even more when those stars die and explode as supernovas. On the nebula's younger left side, many stars are just beginning to clear away the gas and dust.

How could an infinite universe arise from a finite initial state?

Regulars
Saltwater crocodile (Crocodylus porosus) swimming at water surface, split-level, New Guinea, Indo-pacific

How do crocodiles maintain their power despite being mostly still?

Regulars

This week鈥檚 new questions

Is jet lag worse if you go east rather than west? And why do humans have pubic hair, when other 鈥榟airless鈥� mammals like pigs and elephants manage without it

Regulars

Humans

How to make a delicious chilli hot sauce by harnessing fermentation

Regulars

Humans

Pink Sauce provokes social media savaging

Regulars

Tom Gauld on how to spot a scientist having an existential crisis

Regulars

Twisteddoodles: Does science really never sleep?

Regulars