51¶¯Âþ

whales and dolphins

transparent solar cell

Technology

Punching holes in solar cells turns them into transparent windows

Opaque solar panels could be turned into window glass for tall buildings by punching hundreds of tiny holes in them so our eyes perceive them as transparent

51¶¯Âþ

Chris Budd

Video

Sea sums: How we're keeping whales safe using maths

Video

Don't miss: knotty sculptures, deadly diseases and molecular machines

Technology

Don't miss: knotty sculptures, deadly diseases and molecular machines

Culture

blue whale

Life

A blue whale's heart beats just twice a minute when it dives for food

51¶¯Âþ

Shot of a young woman suffering from stomach cramps in her bedroom

Health

Some women feel fetal kicks years after they've given birth

51¶¯Âþ

Huge mysterious ape Gigantopithecus was a distant cousin of orangutans

Life

Huge mysterious ape Gigantopithecus was a distant cousin of orangutans

51¶¯Âþ

steel workers

Environment

Tackling emissions from heavy industry is key to fixing climate change

Leader

The Tenth Muse review: A story in which the women count

Humans

The Tenth Muse review: A story in which the women count

Culture

Humans

Did apes first walk upright on two legs in Europe, not Africa?

51¶¯Âþ

Pregnant woman and man in bed

Health

Sorry, having sex won't start labour – but rubbing your nipples might

Having sex might have helped start your pregnancy but it’s not going to help you when push comes to shove

51¶¯Âþ

Life

Some monkeys reuse their stone tools but others just chuck them away

51¶¯Âþ

Technology

Moving to Mars – this show will help you become a real Martian

Culture

Life

Hunting facts in the classic tale Moby-Dick makes for a strange voyage

Culture

Environment

Humpback whales use their flippers to swat salmon into their mouths

51¶¯Âþ

Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop