The 10 biggest science experiments on Earth

LIGO consists of two large instruments, each with two 2.5-mile-long ( 4 kilometers ) arms.

The LHC boasts over 10,000 tons of iron in its magnetic systems and enough niobium-titanium cable to stretch to the sun and back over six times.

The Large Hadron Collider is the world's largest atom smasher and the largest refrigerator on Earth .

In the Amazon rainforests, researchers are trying to get a handle on the effects of CO2 in the region.

By 2050 , 6 to 10 gigatons of carbon equivalent need to be removed to avoid hitting the warming threshold set by the Paris Agreement .

The first commercial-scale marine carbon-capture facility is aiming to remove carbon right from the ocean.

The ocean naturally takes up carbon from the atmosphere, but it can't absorb it fast enough to make a climatic difference on the scale of a human life span.

IceCube data has allowed scientists to make the first map of the Milky Way using matter, not just light.

The observatory has revealed strange, high-energy cosmic rays with no easy explanation.

People with a stronger national identity responded more cooperatively with public health efforts.