#99 - September 2020 Part 1

The Discussion: This month Jeni's latest paper has a journal reviewer prior to publishing, we take a look at the critical science of cow-cats and a listener brightens our day

The News: Rounding up the astronomy news this month we have:

• Damage to the Arecibo observatory and the prognosis
• Hubble Helps Uncover the Mystery of the Dimming of Betelgeuse
• Mars' water deluge during its habitable phase
• The search for the missing matter in the Milky Way

Main News story: The US National Science Foundation report on the impact of satellite constellations on astronomical science.

The Sky Guide: This month we're taking a look at the constellation of Cygnus with a guide to its history, how to find it, a couple of deep sky objects and a round-up of the solar system views on offer in August.

Guide to the Electromagnetic Spectrum: In this series we take a look at the electromagnetic spectrum, what, it is, what is shows us and why it's so important to astronomers. This month we explain the ultraviolet part of the spectrum and its relevance to astronomy.

The Interview: A 5 minute preview of the hour chat with Fraser Cain of Universe Today and Astronomy Cast. This will be released in full as a podcast extra later this month.