Pythagorean Astronomy

Artist’s impression showing a two-star system where micronovae may occur.

Pythagorean Astronomy: Routine Spaceflight?

Posted on 7 May 2022 by Chris North

It’s not often that a new astronomical phenomenon is named, but this month we have a new one. The name might not be that original, but there have been the first observations of something known as a “micronova”. Lasting just a few hours, a micronova is much fainter than a typical “nova”, making them much
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Rosalind Franklin rover on the surface of Mars

Pythagorean Astronomy: Shadow of war

Posted on 30 March 2022 by Chris North

With the invasion of Ukraine casting a shadow over the world, Chris North and Edward Gomez (returning from a long hiatus!) look at the impact of the war on astronomy and space science, mindful that these pale in importance when compared with the death and destruction taking place on the ground. From the international collaboration
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Venus as seen by Akatsuki

Pythagorean Astronomy: Venus resurfaces

Posted on 1 March 2022 by Chris North

Back in September 2020, the new broke that an unexpected gas, phosphine had been discovered in the atmosphere of Venus. While plans for making further measurements are progressing, the theoreticians have been hard at work modelling the atmosphere, and trying to explain how life could possibly exist in such a harsh environment Dr William Bains,
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Artist's impression of a magnetar

Pythagorean Astronomy: Radio Repeater

Posted on 7 February 2022 by Chris North

When a mysterious signal was found by an undergraduate student, Dr Natasha Hurley-Walker was perplexed. It was hiding in archival data from the Murchison Widefield Array (MWA), a large network of radio antennas in Western Australia. Based at the International Centre for Radio Astronomy Research, Natasha started to loop deeper. Repeating every 18 minutes, and
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Artist's impression on 'Oumuamua

Pythagorean Astronomy: Mysterious visitors bearing gifts

Posted on 29 December 2021 by Chris North

The first interstellar object to be discovered was ‘Oumuamua, detected in 2017. Joined by Comet 2I/Borisov a couple of years later, astronomers are eagerly awaiting further discoveries of such objects, which were ejected from other solar systems. We explore what the link is between these interstellar objects and the history of star formation around the
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Pythagorean Astronomy: The Cosmic Webb

Posted on 6 December 2021 by Chris North

The world of astronomy is eagerly awaiting the launch of the James Webb Space Telescope later in December. The telescope is not without controversy, but is set to revolutionise observations of the cosmos. Prof Pete Hargrave was responsible for building a calibration source for MIRI, the Mid-Infrared Imager, while Dr Tim Davis will be observing
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Multiwavelength views of Pa30

Pythagorean Astronomy: Supernova Detective Story

Posted on 3 October 2021 by Chris North

Way back in 1181 AD, astronomers in China and Japan recorded a “guest star” – something that we’d now call a supernova. Over 800 years later, astronomers made a connection between this ancient observation and more recent studies of a very unusual object that goes by the name of “Parker’s Star”. Prof Quentin Parker, from
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illustration of Comet Bernadinelli-Berstein in the outer solar system

Pythagorean Astronomy: Herding Megacomets

Posted on 29 July 2021 by Chris North

In late June an interesting object was discovered heading inwards from the outer solar system, identified in archival images from a survey of the sky. It was initially thought to be worth keeping an eye on over the next decade or so, as it approaches the orbit of Saturn before heading back out to the
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