Earth
Sun
Sun news October 15: Another sunspot region brings activity
Sun news for October 15, 2024. Sun activity remains at moderate levels thanks to a newer region, AR3852. It produced the most flares and now our main focus.
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.
Space

Want to see Comet A3? It’s back! West after sunset

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. The moon hangs near Saturn in the east after sunset, and you might see Comet A3 in the evening sky.
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.
Astronomy Essentials

The Big Dipper: Why can’t you see it now?

The Big Dipper is easy to recognize at most times of the year. But the Big Dipper in autumn rides low in the northern sky in the evening hours.