Category Archives: Astronomy

Big Sky, Deep Sky

Posted on 2 December 2022 by Mark R. Kelly

Here’s an Astronomy Picture of the Day, for 2022 November 29, that shows how big some nebulae and galaxies are on the scale of the night sky, in a way that we never realize. The highlight here is “The Gum … Continue reading →

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Maps of the Universe

Posted on 27 November 2022 by Mark R. Kelly

More things in heaven and earth. As a palette cleanser from my 26th, 23rd, and 16th November posts (and many previous), here’s a status check on the latest of what human beings have discovered, through systematic investigation (i.e. science), of … Continue reading →

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Astronomical Failures of Intuition

Posted on 16 July 2022 by Mark R. Kelly

Washington Post, Joel Achenbach and Aaron Steckelberg, 15 Jul 2022: Take a cosmic tour inside the images captured by NASA’s Webb telescope Here’s an excellent interactive guide to the images released this week from the James Webb Space Telescope, highlighting … Continue reading →

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Galaxies Like Grains of Sand

Posted on 13 July 2022 by Mark R. Kelly

Two topics today. About the James Webb Telescope photos; and about why people feel the world is broken. I chimed in on Facebook on Monday with a link to this image, as many of my Fb friends were doing, only … Continue reading →

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Phil Plait, BAD ASTRONOMY (the book)

Posted on 24 February 2022 by Mark R. Kelly

Subtitled, “Misconceptions and Misuses Revealed, from Astrology to the Moon Landing ‘Hoax’” Published in trade paperback by John Wiley & Sons, 2002.

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Links and Headlines: Dark Skies; Misinformation; Critical Thinking; Empathy; Headlines

Posted on 30 September 2021 by Mark R. Kelly

There have been a handful of SF novels over the years that include as breaks between the prose sets of futuristic news headlines, to indicate the state of the future world without having to explicate it in detail. Gunn’s The … Continue reading →

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Links and Comments: APOD; Trusting Science; Trusting Experts

Posted on 24 March 2021 by Mark R. Kelly

Another amazing photo from APOD– Which as in previous photos like this that I’ve posted, shows a huge swath of sky, as we would see it with all the stars we *can* see, along with all the nebulae that we … Continue reading →

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Links and Comments: APOD: The Enormous Deep Sky

Posted on 11 March 2021 by Mark R. Kelly

Here’s another amazing photo from APOD, Astronomy Picture of the Day, that illustrates how enormous some of the famous nebulae in the sky are, compared to constellations.

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Links and Comments: Astronomical Photos from APOD

Posted on 17 February 2021 by Mark R. Kelly

After seeing links to the site Astronomy Picture of the Day (APOD) occasionally on my Facebook friends’ posts over the past few months, I added it to my morning regimen of sites to check every day. Here’s today’s. Click for … Continue reading →

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APOD: This is Reality: The Origin of the Elements

Posted on 9 August 2020 by Mark R. Kelly

Click for a text description, with many explanatory links (some technical, some funny).

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