The dictionary defines binary as “composed of or involving two things”, so a binary star is a system composed of two stars which orbit ...

This month . . . . Saturn’s rings. One of the most majestic sights in the night sky. Saturn’s rings are enormous, but they are also...

This Month …. The Astronomical Unit or AU. Used for measuring distances within our Solar System. The Astronomical Unit (AU) is an...

This month, when Paul McCartney is in town, Elizabeth Cocking turns her gaze towards BPM 37093 otherwise known as “Lucy, the Diamond...

This Month Elizabeth Cocking features Phobos and Deimos. The moons of Mars. Not your average moon. Phobos and Deimos are not your...

This month is the 155th anniversary of the discovery of Helium, the second most abundant element in the universe. Helium was first...

This month . . . Meet the neighbours! Alpha Centauri - the closest star system to our solar system. The Alpha Centauri system consists...

Located in the constellation of Orion the Hunter, his belt is unmistakeable in the night sky. Orion’s belt consists of three evenly...

We look at Comet ZTF Comet ZTF, or to give it its full name C2022/E3 ZTF, is named for the Zwicky Transient Facility (ZTF) where the...

A total Lunar Eclipse is due on Tuesday 8 November, 2022. It will be visible from Sydney and most of Australia and New Zealand. Lunar...