Dandelion supernova

It’s a source of some frustration that the last time we spotted a supernova in the Milky Way Galaxy – all the way back in 1604 – no one had a telescope to point at it. We have to content ourselves wit

GLOBAL EYE

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

Might our universe – as vast as it is – be simply one of many? We look at the growing evidence that there’s more than one cosmos out there

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

Earth exists in a bubble. Our atmosphere forms a protective barrier between everything on the planet’s surface and the near-empty vastness of space. But it’s not the only bubble Earth sits inside. Bey