Space
Comet 3I/ATLAS over 10 billion years old, Webb finds
The Webb space telescope has found chemical clues to the origin of interstellar comet 3I/ATLAS. It appears to be several times older than our solar system.
Astronomy Essentials
Tonight
Visible planets and night sky guide for June
EarthSky's visible planets and night sky guide. Find out why June's full moon is so low in the sky for Northern Hemisphere observers in today's livestream.
Sun

Sun news: Powerful sunspot group rotating into view

Sun news for June 24, 2026: Large sunspot arriving on southeast limb fires C8.7! Coronal hole stream building. G1 storms possible June 25–26. Stay tuned!
Earth

Why aren’t the hottest days on the solstice?

June solstice 2026 is the longest day for us in the Northern Hemisphere, but the hottest days for the northern Earth are still to come. Why is that?
Earth

Mammatus clouds are ominous and beautiful

Mammatus clouds look like bubbling, low-hanging clouds. They're often associated with thunderstorms. Learn more about them and see photos here.
Space

Meet the exotic Pink Planet with salty clouds

New observations by the Webb space telescope of the giant exoplanet GJ504b - aka the Pink Planet - show that it has clouds made of salt.
Earth

Katmai bear cam season begins today! Livestream here

The world-famous Katmai bear cam season begins June 23, 2026. Find the livestream here and learn more about brown bears and Katmai National Park.
Space

Asteroid or comet? Meteor or meteorite? Answers here

A bright light zips through the night sky. But what is it? Asteroid or comet? Find the answers here and share your knowledge with your friends and family.
Space

Nancy Grace Roman Space Telescope arrives at space center

The Nancy Grace Roman Space Telescope has now arrived at Kennedy Space Center. It will be prepped for launch this summer, 8 months ahead of schedule.
Constellations
Tonight

Draco the Dragon and Thuban, a former pole star

Tonight, look for the winding shape of Draco the Dragon in the northern sky. This constellation contains Thuban, a former pole star.