EarthSky5- Page

A photo of the Challenger crew, taken on January 9, 1986, during training at the Kennedy Space Center. From left to right: Christa McAuliffe (teacher in space) with astronauts Gregory

View larger. | AI combed Hubble’s archive, revealing – among hundreds of other discoveries – these 6 previously undiscovered, weird, and fascinating astrophysical objects. Of these 6, 3 are lenses

This is the iconic Ring nebula, as seen by combining 4 images from the WEAVE/LIFU instrument on the William Herschel Telescope in the Canary Islands, Spain. The never-before-seen “bar” across

View larger. | Quantum computers and exoplanets: This is the Webb space telescope’s view of the 4 young, colorful, giant exoplanets in the HR 8799 system, 130 light-years away. A

View larger. | Artist’s concept of the view over Valles Marineris, aka the Grand Canyon of Mars. Researchers have found new evidence for an ancient Mars ocean within the canyon.

This new James Webb Space Telescope image shows the galaxy cluster MACS J1149.5+2223, or MACS J1149 for short. It’s located about 5 billion light-years away in the constellation Leo the

Voyager 2 met Uranus, our sun’s 7th planet, on January 24, 1986. Afterwards, as Voyager sped ever-outward from our sun, it obtained this backlit image. Image via NASA/JPL. EarthSky’s 2026

View larger. | Artist’s concept of a large disk of debris, surrounded by a thick cloud of dust and gas, passing in front of a star. Astronomers said there’s a

This is Sagittarius A* (pronounced Sagittarius A-star), the supermassive black hole at the center of our Milky Way galaxy. Sagittarius A* is oddly placid these days, but new research says

This is the new sungrazing comet C/2026 A1 (MAPS). Image via Gerald Rhemann and Michael Jäger. Used with permission. New sungrazing comet inbound There’s a new comet headed into the