As more and more plastic trash permeates the oceans, microplastics are making their way into fish and shellfish, and potentially into humans.

The polar vortex is an enormous, 3-dimensional ring of winds that surrounds the North and South poles during each hemisphere’s winter. The polar vortex influences the jet stream, which can bring cold winter weather to the U.S. and Europe.

Thousands more satellites will soon orbit Earth. We need better rules to prevent space crashes.

Why is there is a universe at all? The question is a challenging one because it seems perfectly possible that there might have been nothing whatsoever – no Earth, no stars, no galaxies, no universe.

The rate at which ice is disappearing across the planet has been speeding up, by 65% since the 1990s, a survey of global ice loss using European Space Agency satellite data reveals.

On Trump’s way out of the White House, his administration demolished a law that protects migratory birds, putting over 1,000 species at risk. The Biden administration can still salvage it, but only if they act swiftly.

A crack on the Antarctic ice shelf grew dramatically in late 2020 into 2021. Scientists are watching to see if the rapidly accelerating crack will cause the shelf to rip apart before Antarctica's sunlit summer season - going on now - comes to an end.

Here are some of the space missions to keep an eye out for in 2021.

A new study has found that pollution from microplastics is widespread in the Arctic Ocean, and 92% of those particles are minuscule synthetic fibers from our clothes.

Megalodons - the extinct giant sharks that lived in most of Earth's oceans about 3 million years ago - gave birth to babies that were larger than adult humans, scientists say.