Category Archives: astronomy

Cosmic Latte

If you ever load up this blog from a slower connection, you may notice that before the background image loads, the HTML background for the page is a kind of off-white vaguely magnolia-ish colour. There is actually a reason for … Continue reading

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Postcards from Ceres

Ceres may just be one of the most underappreciated places in the entire solar system. For a long time it was only considered an asteroid, not even worthy of being mentioned in school textbooks. Which may be why I love that … Continue reading

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8 things we know about Proxima b

Proxima b is exciting, isn’t it? I mean, it’s a planet which was born to a different star. An actual alien planet. And it’s so tantalisingly close! If our species were to actually work towards it, we could conceivably send a robot … Continue reading

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A Procession of Blue Dots

Take a long, hard look at this little animation. It may not look like much at first. A small collection of blue spots, swirling around a mass of light. But what you’re looking at is a system of alien planets orbiting … Continue reading

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Astrophotography by Mia Stålnacke

My favourite astrophotographer of the moment is the extremely talented Mia Stålnacke, whose forté is photographing aurora borealis. As it happens, she’s in the perfect location for views of the aurorae, living high up in the arctic circle. The little town of … Continue reading

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Earth-like?

In the world of exoplanets, Earth-like planets are what everyone’s most excited over. And for good reason. It sure would be great if we could get a close look at one, don’t you think? Wouldn't it be great if there … Continue reading

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Model Planets

As I pointed out yesterday, the recently announced TRAPPIST-1 system is tiny. The little star itself is barely larger than Jupiter. But what about the system as a whole? So I made a model. Behold! This image shows all sizes … Continue reading

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A tiny red sun with a sky full of planets!

Imagine if your sun was tiny and red. Imagine if you could see other planets in the sky as large as the moon appears from Earth. Imagine if all the planets orbiting your star were roughly the same size as … Continue reading

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So many planets…

I love planets, don’t you? Being all… round. With their… Atmospheres. Very gaseous. What’s not to love? Actually, as I’m writing this, there are 3449 confirmed planets in our galaxy. 544 of the planetary systems we’ve seen are multi-planet systems. And … Continue reading

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8 Things About Uranium

As is fairly obvious, the recently inaugurated President of the USA, Donald Trump, has no idea what uranium is. To quote him directly: “You know what uranium is, right? S’thing called nuclear weapons and other things and lots of… things are … Continue reading

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