What is 3I/ATLAS and what makes it so interesting? 3I/ATLAS is an interstellar object that was discovered passing through the Solar System by the Asteroid Terrestrial-impact Last Alert System (ATLAS)

First up is the mag. +11.9 planetary nebula IC 351, located 2.3° west and 0.8° south of Menkib (Xi (ξ) Persei). Despite its small apparent size – just 8 x 6 arcminutes – it’s visible through a small s

1 Nov 00:00 AEST (31 Oct, 14:00 UT) 15 Nov 23:00 AEDT (12:00 UT) 30 Nov 22:00 AEDT (11:00 UT) The chart accurately matches the sky on the dates and times shown for Sydney, Australia. The sky is differ

One of the most important features of extrasolar planets is whether they have an atmosphere or not. For astrobiology in particular, small, rocky planets blanketed with an atmosphere offer the best hop

Crater Byrgius is located in a highland region roughly midway between dark-floored Grimaldi (222km) and Schickard (227km). Under high illumination, this 88km-diameter feature is best revealed by Byrgi

When we imagine planets, we usually picture them circling a fiery star like our Sun. But new evidence has now been found of a type of planetary system that instead forms around cold planets that float