A short explanation An image from a video visualisation of the expanding and accelerating universe ( Credit : NASA's Goddard Space Flight Center Conceptual Image Lab). By Dirk Goës BSc(CompSc) UOW, MSc(Astronomy) Swinburne About me: I have been a member of the Sydney City Skywatchers for two years. I am a member of the committee and am responsible for maintaining and improving the Skywatchers website. I recently graduated with a Master of Science (Astronomy) from Swinburn

See below for my astronomy videos that I have created over the last 2-3 years. Episode 1 - Comets Episode 2 - Black Holes Episode 3 -...

By Jeff Portelli Les Dalrymple was passionate about astronomy, and an exceptionally knowledgeable and experienced amateur astronomer. He...

Sydney City Skywatchers member Garry Dalrymple has been observing sunspot activity lately with a small aperture telescope fitted with a...

An easy-to-use walk around guide. By Garry P. Dalrymple The visibility of the stars and the planets is a restriction placed on all of us...

Dr Toner Stevenson, History Affiliate, School of Humanities, The University of Sydney This blog post is to recognise Margaret Colville...

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

11th November 1572 Supernova SN1572, also called B Cassiopeiae, is first observed by Danish astronomer, Tycho Brahe. The “new star” was...

A few snippets about one of the easiest constellations to spot in the night sky.

25th June 1997 A Russian uncrewed cargo spacecraft collides with the Mir Space Station during a docking attempt knocking out much of its...