EarthSky

View larger. | Artist’s concept of scorching hot TOI-561 b and its sunlike star. New observations by NASA’s James Webb Space Telescope show there is a dense atmosphere on lava

In 2024, astronomers discovered the brightest Luminous Fast Blue Optical Transient (LFBOT) ever observed. LFBOTs are extremely bright flashes of blue light that shine for brief periods before fading away.

View larger. | Artist’s depiction of the interior of Uranus as either an ice giant (left) or rock giant (right). A new study suggests both Uranus and Neptune could be

Dwarf planet Ceres’ Occator crater in false color showing surface composition via NASA/ JPL-Caltech/ UCLA/ MPS/ DLR/ IDA. EarthSky’s 2026 lunar calendar is available now. Get yours today! Makes a

This artist’s animation shows a hypothesized event known as a superkilonova. First, the massive star ends its life in a supernova, generating elements like carbon and iron. In the aftermath,

NASA’s SPHEREx has mapped the entire sky in 102 infrared colors, which are invisible to the human eye but can be used to reveal different features of the cosmos. This

View larger. | NASA’s Galileo spacecraft captured this view of the ‘spider’ on Europa – one of Jupiter’s moons – in Manannán crater in May 1998. Image via NASA/JPL/ University

View larger. | Artist’s illustration of the Cassini spacecraft during a flyby of Titan. Previous analysis of data from Cassini suggested Titan had a global ocean of water beneath its

This image shows how far Earth’s radio broadcasts traveled across our Milky Way galaxy. No, not the width of the black box, or “inset.” Look closer. Look inside the inset.

The iconic Earthrise image of Earth appearing over the moon’s horizon as captured by William Anders from the Apollo 8 spacecraft, taken during a live broadcast with NASA astronauts from