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.
Why are Mars’ polar caps different from each other?
Mars' polar caps are generally similar, but they also differ in some some ways. A new study shows how the differing sublimation of CO2 ice plays a role.
September 13, 2024
Question mark galaxy? Gravity lens creates cosmic graffiti
An unusual occurrence of gravitational lensing created this view of a question mark galaxy. The discovery reveals details about early galactic evolution.
September 13, 2024
International Observe the Moon Night September 14
International Observe the Moon Night is September 14, 2024. It's a global event for celebrating the moon. Here's how you can participate online or in person.
September 13, 2024
Cassiopeia ascends in September and October
Cassiopeia the Queen is an easy-to-find constellation. It has the shape of a W or M. Look in the north-northeast sky on September and October evenings.
September 13, 2024
Jupiter’s moon Io has a new volcano! See pics here
Jupiter's moon Io has a new volcano! The volcano appears in Juno spacecraft images from February 2024. Streams of lava and sulfur stains mark its flanks.
September 12, 2024
Watch a star’s surface bubble in fantastic video and images
For the 1st time, astronomers have watched a star's surface bubble in magnificent detail. The bubbling is hot gases on a star 178 light-years away.
September 12, 2024
Earth to get an asteroid mini-moon for 2 months
Earth will get an asteroid mini-moon for 2 months when the 33-foot-wide 2024 PT5 makes a close pass of our planet and makes a temporary loop about us.
September 12, 2024
New dinosaur – a long-necked titanosaur – uncovered in Spain
A new species of titanosaur, a large plant-eating dinosaur with a long neck, was discovered near Cuenca, Spain. It lived 73 million years ago.
September 12, 2024
Corona Australis is the sparkling Southern Crown
Corona Australis is a dim constellation lying below the Teapot asterism of Sagittarius. Its sparkling, curving shape befits its name.
September 12, 2024
Human-made meteor shower could hit Earth in a decade
When DART spacecraft hit asteroid Dimorphos, it released debris that should arrive at Mars and Earth, creating the 1st human-made meteor shower for the planets.
September 11, 2024
