Betelgeuse’s companion star leaves detectable wake

This artist’s concept shows Betelgeuse’s companion star orbiting the red supergiant. The companion, which is orbiting…

Saturn-mass rogue planet revealed in unique new observations

View larger. | Artist’s concept of a rogue planet in the process of microlensing a more…

Cloud-9 is a new type of object: a failed galaxy

This image shows the location of Cloud-9, which is 14 million light-years from Earth. The diffuse…

Supermassive black holes in all galaxies? Maybe not

View larger. | In recent decades, we’ve come to understand most large galaxies as having central…

Unexpected atmosphere on lava planet is an exciting surprise

View larger. | Artist’s concept of scorching hot TOI-561 b and its sunlike star. New observations…

Bright blue cosmic outbursts linked to black holes

In 2024, astronomers discovered the brightest Luminous Fast Blue Optical Transient (LFBOT) ever observed. LFBOTs are…

Are Uranus and Neptune rock giants and not ice giants?

View larger. | Artist’s depiction of the interior of Uranus as either an ice giant (left)…

Dwarf planet Ceres discovered 225 years ago today

Dwarf planet Ceres’ Occator crater in false color showing surface composition via NASA/ JPL-Caltech/ UCLA/ MPS/…

Star’s double explosion is first of its kind

This artist’s animation shows a hypothesized event known as a superkilonova. First, the massive star ends…

NASA’s SPHEREx observatory completes stunning 1st cosmic map

NASA’s SPHEREx has mapped the entire sky in 102 infrared colors, which are invisible to the…