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Transient flashes in ’50s sky plates still puzzle scientists
Scientists see mysterious transient flashes of light in 1950s sky images from the Palomar Observatory. It was before the 1st satellites. What were they?
October 29, 2025
Hurricane Melissa hits Jamaica and Cuba, heads toward Bermuda
Category 5 Hurricane Melissa made landfall in Jamaica just after 1:00 p.m. EDT on October 28, 2025. Some 70% of the country is still without power.
October 29, 2025
Rare fossils show how duck-billed dinosaurs appeared in life
Scientists have reconstructed the outer body features of two 66-million-year-old duck-billed dinosaurs, uncovering exquisite details such as scales and hooves.
October 29, 2025
Why were prehistoric insects so enormous?
Hundreds of millions of years ago, giant insects were common on Earth. In fact, prehistoric insects were here before the dinosaurs!
October 29, 2025
See brightest star, Sirius, in your morning sky
Out late at night or before dawn? Look for the sky's brightest star, Sirius, a brilliant beauty. You'll know it's Sirius if you see Orion's Belt pointing to it.
October 29, 2025
U.S. winter weather outlook and how La Niña will factor in
La Niña has developed and should stay in place through February. This will impact the winter weather outlook for the U.S., but it depends on your location.
October 28, 2025
Bats that shine in the dark are nature’s Halloween surprise
A team of scientists has discovered 6 bats that glow under ultraviolet light, but they don't know why. Here's why this is a mystery.
October 27, 2025
Awe-inspiring Comet Lemmon photos from our community
Enjoy these editor's picks of EarthSky community photos of Comet Lemmon (C/2025 A6). It's currently on its way toward closest approach to the sun.
October 26, 2025
New possible volcanic exomoon orbiting searing hot exoplanet
Astronomers using the James Webb Space Telescope said they've found evidence of a possible volcanic exomoon orbiting the hot Jupiter exoplanet WASP-39b.
October 26, 2025
Double stars: How to find, observe and enjoy them
This observing guide gives you a range of choices for seeing double stars with your eyes alone, with binoculars or with a telescope. And some are easy to find.
October 26, 2025
