How snowflakes get their distinct and various shapes

Snowflakes form in a variety of different shapes from hexagonal plates to exquisite symmetrically-branching crystals, depending on the temperature and humidity.

Amazing cloud streets video: See it here!

See a new video of cloud streets from off the coast of the southeastern U.S. and read more about the phenomenon here.

Expect high tides whenever we have a supermoon

The sun and moon, among other things, affect the height of the tides. Expect higher-than-usual tides for a few days following a supermoon.

Jacana birds: Walking on water, breaking the rules

Jacana birds glide effortlessly across wetlands, defying both physics and nature's common gender roles. Discover this amazing creature here.

How to photograph snowflakes from Michael Peres

An expert photographer of nature’s beauty on a minuscule scale, Michael Peres offers you tips on how to photograph snowflakes.

Heiligenschein is the halo around your head’s shadow

Have you ever looked down at your shadow and noticed it looks like you have a bright halo around your head? That's heiligenschein.

Tiger shark mating site identified off Maui

Researchers have identified a tiger shark mating site off Maui. Their study reveals a predictable gathering pattern among the sharks for mating.

Major winter storm set to impact large swath of the U.S.

A major winter storm is affecting millions across the United States. Heavy snow and significant ice is possible starting Friday night. More info here.

New clues to woolly rhino extinction found in wolf’s stomach

Scientists found woolly rhino tissue in a 14,400-year-old frozen wolf’s stomach. Genomics suggest these rhinos went extinct rapidly.

The elephant shrew is a long-snouted speedster

The elephant shrew is a small but clever creature. It survives using speed, memory and keen senses in a world where predators lurk at every turn.

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.