Tag Archives: astronomy

Supernova Remnant Cassiopeia A: Cool Images of Hot Gas

Webb’s high-resolution cameras are showing details that scientists have never seen before. That’s what I started talking about this week.

But the Cassiopeia A supernova’s underwhelming appearance, or maybe non-appearance, reminded me of famines, coffeehouses, and other malign menaces. Continue reading

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Sednoids, Rewinding the Solar System in a Simulation 

Sedna and Sednoids aren’t this month’s only science news. But I saw two exciting, for me, developments; and that’s what I started talking about last week. This week I’ll wrap up most of what I was going to say about … Continue reading

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Sednoids and the Mysterious Missing Planet X

As I’ve said before, this isn’t the world I grew up in. Back then, the Solar System had nine planets, assorted moons, and asteroids. Plus, of course, the sun. Now we’ve got planets, dwarf planets, minor planets, natural satellites, trans-Neptunian … Continue reading

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Double Jupiters, a JuMBO Puzzle; Antimatter Falls Down

Every time we develop new tech for studying this universe, we find something new. New to us, that is. This week, I’ll be talking about unexpected Jupiter-size objects in the Orion Nebula, and why scientists at CERN dropped a few … Continue reading

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Back to Betelgeuse, Methenium in Orion, TRAPPIST-1 Update

Scientists found methenium, a simple organic compound, in a protoplanetary disk. I’ll talk about that this week, and why it’s a big deal. The planet TRAPPIST-1c is about the same size as Venus, but it’s very likely airless. Betelgeuse may … Continue reading

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