Highest-flying bird record crossing of Himalayas

What is the world's highest-flying bird? It's the Bar-headed goose, and it can reach the height of Mount Everest from sea level in just eight hours.

Predicting the tipping point of an ecosystem?

Scientists studying a remote Wisconsin lake have identified early warning signs that an ecosystem is on the tipping point of a radical, rapid change.

Falling ash from Puyehue-Cordón Caulle volcano

The Chilean volcanic eruption on Saturday, June 4, 2011 reached six miles up into the sky and sent a plume of ash toward Argentina. Read more about falling ash.

Tropical forests and carbon storage in 1st-ever map

Researchers looked at three million measurements of treetop height, along with ground data, and calculated the carbon held in tropical forests.

A week of deadly and rare tornadoes in Massachusetts

Dramatic video of June 1, 2011 tornado in Springfield, MA, crossing a river. A total of two tornadoes struck Springfield, killing 4 and injuring 40.

There’s no such thing as a jellyfish

What's a jellyfish? The Monterey Bay Aquarium Research Institute created this wonderful video about jelly-like life forms that inhabit the ocean.

Great snipe is the fastest migratory bird ever discovered

Swedish scientists found that a great snipe migrates nonstop over a distance of around 4,200 miles (6,760 km) at a phenomenal 60 mph (97 kph).

Cats have a secret life

What do feral and free-roaming house cats do when they’re out of sight? A two-year study used tracking devices to follow the movement of feral and pet cats.

Honeybee count: preliminary results

USDA/AIA survey shows honeybee loss holding steady but majority of beekeepers feeling economic strain.

Treefrogs: Understanding species diversity

Recent research on treefrogs across the world could shed new light on why some places have more species diversity than others.

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.