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Most of us remember just a few years ago when Comet McNaught lit up the January sky. From the country side it was incredibly spectacular as seen by the joy on the author’s face in the image below.
As comets travel around the Sun their surface...
The sounds of surf and swimmers frolicking, diamond white sunlight glistening off the waves and gorgeous blue sky from horizon to zenith. What a way to celebrate Manly’s 16th Ocean Care Day 2009 yesterday organised by the Manly Environment Centre....
What is a black hole?
A black hole is a region of space that has a gravitational force strong enough to prevent anything, including light, from escaping.
The escape velocity of a star or planet is how fast an object must be travelling to escape its...
This is a transcript of a podcast of the December 2009 night sky guide. Download and listen to the podcast as you gaze up at the night sky.
Geoffrey Wyatt: Hello, I’m Geoffrey Wyatt, Senior Astronomy Educator here at Sydney Observatory, and I’ll...
Senior Wardaman elder Yidumduma Bill Harney speaking at the opening of the Ilgarijiri “things belonging to the sky” exhibition in the foyer of AIATSIS, Canberra, on Friday 27 November 2009. Image Toner Stevenson
The symposium and art exhibition...
