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Blog

Filtering by Tag: astronomy

"Gaia EDR3 bright star parallax zero-point using stellar clusters" - Flynn et al. (2021)

Alan Duffy

he incredible Gaia spacecraft has been monitoring the almost imperceptible drift of the stars in our Milky Way for the last decade, allowing us to measure their exact 3D position using the powerful parallax method. Yet even these measures can be improved in time as this work by Swinburne’s Dr Chris Flynn shows.

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Astronomical - Looking for Life Beyond Earth (my new audiobook!)

Alan Duffy

In the next two decades we will search the skies, solar system and space for alien life with new techniques and technologies thousands of times more powerful than all of humanity's efforts to date. I toured the world speaking to experts in this search for alien life, as well as the kinds of life we might uncover, and of course a serious investigation into the claims that it may already be here(!)

My thanks to Audible for making possible this incredible journey. I hope you enjoy listening to what I discovered with Astronomical - Looking for Life Beyond Earth

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Losing my mind on TV about Black Hole image

Alan Duffy

This is the heart of darkness.

The gravity of the blackhole is so great it casts a ‘shadow’ 2.5 times larger than itself (as defined by its event horizon) against the glowing material swirling into its maw.

That darkness is the size of the solar system but even so 6.5 billion Sun’s worth of mass crushes up pretty small when you’re a black hole.

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