General Guides

Why our Moon only shows us one face, yet appears different each night

Why our Moon only ever shows us one face, yet appears different night after night.

What are black holes and what have we learned about them?

What are black holes and what have we learned in the century since they were first theorised?

The science behind the transition from day to night

The period between ‘day’ and ‘night’ is complex, and so is the sky at this time.

What ‘Dobs’ are and how an amateur design took over the world

What Dobsonian telescopes are, how they work and how an amateur design took over the world.

What altaz mounts are, how they work and why ‘simple’ doesn’t always mean ‘bad’

What altaz mounts are, how they work and why ‘simple’ doesn’t always mean ‘bad’.

What EQ mounts are, what they do and how they can improve your observing.

What EQ mounts are, what they do and how they can improve your observing.

How we classify asteroids, and why we’re so keen to study them

How we classify asteroids, and why we’re so keen to study them

Read our guide to the four stats that underpin a telescope's capabilities

Can't tell your focal length from your focal ratio? Concerned about aperture and useful magnification? Read our guide to the four stats that underpin a telescope's capabilities.

How bends in spacetime enable telescopes to see farther into the Universe

What is gravitational lensing, and why is it useful to astronomers? We explore how bends in spacetime enable telescopes to see farther into the Universe.

 
How Australia’s indigenous people view and use the night sky

How Australia’s indigenous people view and use the night sky

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