Huge iceberg A-68A nears South Georgia Island

Scientists watch as A-68A, currently the planet’s largest iceberg, approaches a remote island in the southern Atlantic Ocean.

Desert with hills in distance and wispy clouds in blue sky above.

Clues to Mars life in Earth’s Atacama Desert

Researchers in the U.S. and Spain have discovered a plethora of previously unknown microbes living in wet clay layers below Chile’s arid Atacama Desert. The finding will help future rovers search for life on Mars.

Scientists discover ancient lake bed deep beneath Greenland ice

The ancient lake bed, sealed more than a mile under Greenland ice, may be hundreds of thousands or millions of years old, and contain unique fossil and chemical traces of past climates and life.

2020 Atlantic hurricane season busiest on record

The formation of Subtropical Storm Theta on November 10 over the northeastern Atlantic Ocean made the 2020 season the most active on the 169-year record.

What are shelf clouds? Stunning photos here

Shelf clouds sometimes form at the forward edge of thunderstorms. See photos here.

Why Arctic sea ice has stalled, and what it means for the rest of the world

In the next few decades, scientists expect we’ll see an ice-free Arctic Ocean throughout the summer. That prospect got much closer in 2020, due in part to the exceptional summer heatwave that roiled the Russian Arctic.

2020 Antarctic ozone hole among largest, deepest in recent years

This year’s ozone hole covers most of the Antarctic continent and is among the largest and deepest in recent years.

Here are 3 amazing feats of spiders

Halloween time is spider time. Three amazing spider skills you might not have known about.

How does fog form?

Fog forms when the air cools and water vapor condenses.

The Arctic hasn’t been this warm for 3 million years

The last time CO2 concentrations reached today’s level was 3 million years ago, during the Pliocene Epoch. Hear from geoscientists who see evolving conditions in the Arctic as an indicator of how climate change could transform the planet.

Earth just had its hottest September on record

September 2020 was our planet’s hottest September since 1880. With 3 months left, 2020 could rank among the top 3 warmest years on record for the globe.

Worsening rifts and fractures spotted at 2 important Antarctic glaciers

Satellite imagery has revealed that 2 of the fastest-changing glaciers in Antarctica – Pine Island and Thwaites – are fracturing and weakening faster than ever, a step towards the glaciers’ disintegrating and causing sea levels to rise dramatically.

Ancient microbial life used arsenic to thrive in a world without oxygen

Today, most life on Earth is supported by oxygen. But ancient microbial mats existed for a billion years before oxygen was present in the atmosphere. So what did life use instead?

Inside the secret lives of synchronous fireflies

In the Smoky Mountains, thousands of fireflies flash in unison. Researchers want to know how.

How to see anticrepuscular rays

Next time you see crepuscular rays – sunrays – at sunrise or sunset, turn around.

Is Iceland’s most active volcano about to erupt?

The ice-covered Grímsvötn volcano produced an unusually large and powerful eruption in 2011. Now, says this volcanologist, there are clear signs that Grímsvötn is getting ready to erupt again.

Did this mass extinction event trigger dawn of the dinosaurs?

New research suggests that a series of huge volcanic eruptions, 233 million years ago, led to a mass extinction event that heralded the dawn of the dinosaurs.

Which insects have the worst stings?

Some of the most painful stings come from tarantula hawk wasps, warrior wasps, and bullet ants.

2020 Arctic sea ice minimum 2nd lowest on record

On September 15, 2020, Arctic sea ice reached its annual minimum extent, the 2nd-lowest on record. The Arctic region in general is warming 3 times faster than the rest of the planet.

A Chinese perspective on autumn

In Chinese thought, autumn is with the direction west, considered to be the direction of dreams and visions.