Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Moon’s volcanoes were erupting only 120 million years ago
Scientists in China, studying samples brought back by the Chang’e-5 mission, say that the moon's volcanoes were active as recently as 120 million years ago.
September 8, 2024
What does opposition mean for an outer planet?
Opposition is when Earth passes directly between the sun and an outer planet, placing the outer planet on the opposite side of the sky from the sun.
September 8, 2024
Saturn at opposition – brightest for 2024 – on September 8
Don't miss Saturn at opposition on and around the night of September 8, 2024. That's when our planet Earth passes between the sun and Saturn.
September 7, 2024
Ailing Starliner spacecraft returns to Earth sans crew
Boeing's Starliner capsule landed safely - without its crew - on Friday night. The 2 astronauts are still stuck aboard the ISS, slated to return in February.
September 7, 2024
How asteroid Phaethon can spawn the Geminid meteors
Phaethon is a weird asteroid that behaves like a comet. It's also responsible for the Geminid meteor shower. Find out how it does so, here.
September 6, 2024
Deep-sky photos for August 2024: Editor’s picks
Enjoy this gallery of deep-sky photos for August 2024 from our EarthSky community. If you have a great photo to share, send it in too. We love to see them!
September 6, 2024
Earth’s core has a huge, hidden donut shape
Scientists in Australia have discovered a huge donut-shaped region in Earth's core. The finding provides new clues about the dynamics of Earth's magnetic field.
September 6, 2024
Orion’s Belt points to Sirius on September mornings
Sirius is the sky's brightest star. But sometimes bright planets outshine it. Orion's Belt is your ticket to identifying Sirius.
September 6, 2024
Small asteroid hit Earth’s atmosphere Thursday, Sep 5
A small asteroid harmlessly hit Earth's atmosphere above the northern Philippines around 16:39 UTC on September 5, 2024. Watch the videos of the event here!
September 5, 2024
Jupiter’s moon slammed and tipped by giant asteroid?
About 4 billion years ago, a huge asteroid - 20 times larger than Earth's dinosaur-killer - struck Jupiter's moon Ganymede and tilted its orientation.
September 5, 2024
