Tag Archives: stars

Supernova Remnant Cassiopeia A: Cool Images of Hot Gas 0 (0)

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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Double Jupiters, a JuMBO Puzzle; Antimatter Falls Down 0 (0)

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 0 (0)

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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Peril in Orion! Beware Betelgeuse? 0 (0)

Betelgeuse, the bright red star in Orion’s right shoulder, is a semiregular variable star, with small periods of 185 days and 2,100 days and a main period of around 400 days. It will explode at any moment, and we’re right … Continue reading

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Galaxies, Gravity and a Hot Terrestrial Planet 0 (0)

“NASA’s Webb Reveals Intricate Networks of Gas and Dust in Nearby Galaxies“Laura Betz, NASA’s Goddard Space Flight Center, Greenbelt, Maryland; Christine Pulliam, Hannah Braun, Space Telescope Science Institute, Baltimore, Maryland; Editor Jamie Adkins (February 16, 2023) “Researchers using NASA’s James … Continue reading

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