Watch hummingbirds feed – and fight – in slo-mo

Turns out some hummingbird bills have evolved for fencing as well as sipping nectar.

More East Antarctica glaciers are waking up

Researchers have said that Totten Glacier, a behemoth with enough ice to raise sea levels by 11 feet (3.4 meters), appears to be melting. Now, they say 4 glaciers west of Totten, and a handful farther east, are also losing ice.

EarthSky’s top 5 stories of 2018

From the months-long eruption of Hawaii's Kilauea Volcano to a strange object discovered on the surface of Mars - and more - here's a quick roundup of the stories our readers enjoyed most in 2018.

Animal world is awesome: 3 essential reads

The elusive fossa, deepsea corals and a tropical frog which has developed resistance to a deadly fungus. Here are 3 stories from 2018 that remind us how awesome the animal world is.

What are your chances for a white Christmas?

For people in the continental United States, here’s your historic probability of getting a white Christmas in 2018.

Did a supernova kill off the megalodon?

A new study suggests that a tsunami of cosmic energy from a supernova killed off large ocean animals - including the huge megalodon shark - 2.6 million years ago.

NOAA releases 2018 Arctic Report Card

This year’s report shows that the Arctic region experienced the 2nd-warmest air temperatures ever recorded, the 2nd-lowest overall sea-ice coverage, and lowest recorded winter ice in the Bering Sea.

Huge previously-undetected coral reef off US East Coast

Earlier this year, scientists were surprised to discover a huge forest of coldwater corals off the coast of South Carolina. A scientist aboard the expedition discusses the find.

Scientists describe 229 new species in 2018

The list includes neon fish, a fast-spinning spider, moray eels, venomous snakes, and more!

What would a warmer world look like?

According to the recent IPCC Special Report, warming of 1.5°C (2.7°F) is an important threshold for many climate impacts. What might our planet look like with 1.5°C of warming?