Space
Comet A3 is the brightest comet in 27 years! Don’t miss it
Comet A3 Tsuchinshan-ATLAS is now in the evening sky! Look west after sunset. Get tips and star charts here. If you capture an image, submit it to EarthSky!
Tonight
Visible planets and night sky guide for October
Visible planets and night sky guide for October 2024. Comet Tsuchinchan-ATLAS (or A3) is visible in the west. Look after sunset near the planet Venus.
Earth
Human World

Monday’s livestream: Extreme weather and climate change with Davide Faranda

Watch our replay about climate change and extreme weather with climatologist Davide Faranda, an expert on cold spells, heatwaves and severe thunderstorms.
Earth
Sun

Sun news October 15: A new leading sunspot region

Sun news for October 15, 2024. Sun activity remains moderate thanks to AR3852 taking up the mantle from aurora-causing AR3848, which has passed out of view.
Space
Spaceflight

Europa Clipper launch success on Monday

Europa Clipper is NASA's mission to explore the icy, ocean moon of Jupiter. Scientists want to know if life could exist in Europa's ocean.
Space
Tonight

Comet A3 has an anti-tail! Can you see it?

Comet A3 and Earth have passed their closest point. But, early this week, we're crossing the plane of the comet's orbit. Some are seeing an anti-tail!
Space

Ice on the moon is widespread, new study shows

A new NASA study of permanently shadowed regions near the lunar south pole shows that there is a lot more water ice on the moon than previously thought.
Earth

Lifeform of the week: Snails are full of surprises

There are many surprising facts about land snails. Did you know a snail is both male and female? And they can have 25,000 teeth? More here!
Astronomy Essentials

Super Hunter’s Moon: Closest supermoon in 2024

The Super Hunter's Moon - this year's October full moon - is on October 17, 2024. It's the closest - and brightest - supermoon of 2024.
Space

Jupiter’s Great Red Spot wiggles like gelatin

New observations with the Hubble Space Telescope show that Jupiter's Great Red Spot wiggles like a bowl of gelatin. It squeezes in and out like a stress ball.