An unusual occurrence of gravitational lensing created this view of a question mark galaxy. The discovery reveals details about early galactic evolution.
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.
A recently-published study suggests the red giant star Betelgeuse may have a sun-size companion which might affect the star's brightness and variability.
Researchers uncovered a rare instance of large sharks preying on one another. The finding shows the complexity of shark interactions and resulting impacts.
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.