26K views · 872 reactions | The Australian flag is flying on the...

What do the 4 different coloured flags mean in Antarctica? You’ve probably seen them in my videos but not paid much attention to why they are the colour they are, and what they’re used for. Now that you’re consciously thinking about them, I’ll let you know. Both the green and the red flags are used to mark SAFE routes, usually on roads or pre established walking trails. Black flags mark danger ⚠️ like crevasses and cracks. Blue flags are used to indicate fuel lines or refueling infrastructure. T

Video shows a drilling rig’s journey inside an Antarctic glacier holding ancient ice estimated to be as much as 5 million years old. Photographer Martin Froger Silva spent weeks at a remote field camp in Antarctica with the U.S. National Science Foundation Center for Oldest Ice Exploration team – which aims to record Earth’s climate and environmental history – drilling into a glacier. During the final day of his expedition, Froger Silva strapped a camera to the rig to record its decent down the