Posts by 

EarthSky Voices

Learn to recognize the wildlife out your window

With careful observation, you can start to recognize a particular squirrel, or that certain cardinal pair that hangs out on your feeder.

Here’s how SOHO and a skywatcher discovered comet SWAN

Almost every day, the SWAN instrument aboard the sun-watching SOHO spacecraft makes a map of the sky. Anyone with internet access can view the maps and join the search for new comets. To date, 12 comets have been spotted in the SWAN data!

Murder hornets? 5 questions answered about Asian giant hornets in North America

Are murder hornets from Asia invading North America? An entomologist who lived among them in Japan explains what's true about the predatory insects.

Submerged in water, this new device uses sunlight to produce energy

"The concept is broadly similar to an artificial leaf," researchers said.

Touching the asteroid Ryugu

It’s a spectacular achievement to rendezvous with an asteroid as it’s whizzing around the sun. It's even more amazing to collect a sample. That's what the Hayabusa2 spacecraft did in February 2019. Here's what researchers learned.

As the climate shifts, a border moves

Italy’s northern border with Switzerland depends on the natural, morphological boundaries of glaciers’ frontiers. But in recent years, glaciers have been melting at increased rates due to climate change. This has caused the border to shift noticeably.

Earth’s biggest iceberg breaks off smaller berg

The colossal iceberg from Antarctica’s Larsen-C Ice Shelf finally fractured in April, generating a new 51-square-nautical-mile iceberg.

New closest-known black hole lies in a visible star system

Only 1,000 light-years away, the star system can be seen with the unaided eye.

Insects have declined worldwide since 1925

A new study has offered the clearest indication yet of how insects all over the world are faring. The researchers studied data on the numbers and total weight of insects and arachnids (spiders and mites) sampled in 41 countries on five continents.

Coronavirus genome like a shipping label that lets epidemiologists track where it’s been

Every time the virus copies itself it makes mistakes, creating a trail that researchers can use to build a family tree with information about where it's traveled, and when.

2026 Donation Campaign

If EarthSky has ever helped you discover something new, prepare for an eclipse, spot a planet, or simply inspired a moment of wonder, today is the perfect day to give back. Your donation helps keep trusted science news, expert night sky guides, and independent science journalism free for everyone.

Please help keep EarthSky going by donating today!

Please help keep

EarthSky going!

If you've already donated, we apologize for the popup and greatly appreciate your support.