Stars that pull each other apart, merge, and explode A still from an animation simulating a thermonuclear explosion occurring on the...

Reports of the total lunar eclipse which occurred on 14 March 2025, as seen from eastern Australia.

130th anniversary of astronomy society highlights

Celebrating Australian women in astronomy on International Womens Day

Our active Sun in February 2025

Königsberg Observatory (left) where Friedrich Wilhelm Bessel made the first successful distance measurement to a star other than the Sun...

A short explanation An image from a video visualisation of the expanding and accelerating universe ( Credit : NASA's Goddard Space Flight...

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...