RTÉ Eile

National Weather Warning

Get live updates from RTÉ

1

Click icon above
to allow notifications
from RTÉ

2

Select 'Allow'
Once prompted
by Chrome

Maybe later

The blue-ringed octopus, Hapalochlaena maculosa, is one of the world's most venomous creatures and its blue rings warn predators of its deadly nature.

Under the sea: your guide to octopus, squid and cuttlefish

Marine animals / 20 hrs

"Historical records mention that the Vikings also took slaves to sell - and some of those slaves were women"

How DNA tells a story about Vikings and human trafficking

Historical re-enactment of a surgeon operating on an archer who was wounded during an attack by the Mamluks on the monastery of the Order of the Hospitallers (1250-1291) in Acre in Israel. Photo: DeAgostini/ Getty Images

What was it like to go to the doctor in medieval Ireland?

Medicine / 23 hrs

Showing some leg: Robert Howard demonstrates a very effective Taekwon-Do strike

The physics of martial arts

Martial arts / 16 Nov

"We spend a considerable amount of time dreaming and daydreaming"

Why does the mind wander?

Psychology / 15 Nov

Hurricane Hugo hits St. Croix in the Virgin Islands in 1989. Photo by Gary Williams/Liaison/Getty Images

Hurricanes: against monsters in the Caribbean and Ireland

Hurricanes / 15 Nov

"A study has suggested that there may be no limit to human life span based on statistical extrapolation"

Who wants to live forever?

Old age / 15 Nov

"When signals from the gut to the brain reach a certain threshold during eating, we experience the feeling of satiety and a stop signal is activated which changes desire from "wanting to eat" to "wanting to stop eating"."

How does the brain control what we eat?

"We can spot a loved one walking at a distance or in a crowd by the sounds and visual signals their body makes" Photo: iStock

How our footsteps could be used for security and health checks

science week / 14 Nov

"Self-examination is highly recommended so the general public should examine their mouths regularly before brushing"

What's behind the huge rise in oral cancers?

Cancer / 14 Nov

"Contrary to common conceptions, schizophrenia does not involve split personalities, but rather has been described by sufferers as "having a shattered mind"."

What causes schizophrenia?

"Globally, more than 250 million people suffer from a food allergy with more than 17 million people suffering from food allergies in Europe alone"

Why has there been a global increase in food allergies?

Health / 13 Nov

"It's said that adolescence begins in biology and ends in culture"

Are you an adolescent until your mid-twenties?

Adolescence / 12 Nov

A teenage turtle after surgery to remove a tumour

Meet the real teenage mutant sea turtles

Marine / 12 Nov

"With our alarm clocks and devices, we are one of the only species on the planet that consciously deprives ourselves of enough sleep"

Can lack of sleep lead to heart disease?

Lough Feeagh and the Nephin mountains in Co Mayo. Photo: Michael Chambers

Time to have your say on Ireland's future heritage plan

Heritage / 08 Nov

Bookies prepare their stalls ahead of the day's racing. Photo: RTÉ

No sure bet: dealing with the effects of harmful gambling

Gambling / 08 Nov

Singapore Airlines are now operating a 15,000km 19 hour service from Singapore to New York

Do we really want 20 hour non-stop flights?

Travel / 06 Nov

The moment when you realise you've ran out of shower gel

The science of horror movies

Horror Movies / 05 Nov

"Some Chinese characters are extremely complicated and can contain up to 58 strokes, while knowledge of a minimum of 3,500 characters is required to understand those used in day-to-day life." Photo: iStock

How hard is it to learn Chinese?

Chinese / 26 Oct

A Dronefly in the wild. Photo: Katherine Burns

Meet the hard working class insects

Nature / 25 Oct

US president Donal Trump: "people perceive and understand the world in different ways"

Why do we lie?

Who will be calling this gaff home after Friday's election?

7 things you probably didn't know about Áras an Uachtaráin

Áras An Uachtaráin / 23 Oct

Fake news

Six great myths about dinosaurs - and how we busted them

Dinosaurs / 18 Oct

"The most important communications channels for young people now target them with very specific messages that encourage engagement between consumers, peers and brands"

How alcohol advertising influences drinking behaviour

marketing / 17 Oct

Showing 1 - 25 of 151 stories