Noise maps of the Sun at radio wavelengths by TS Bastian et al. – Community of European Solar Radio Astronomers

The Sun is a powerful source of radio emissions, to the point that, unlike most celestial sources, this emission dominates the system noise of many radio telescopes. The noise resulting from these sources is called “own noise”. Two recent papers analyze self-noise in maps of the Sun at radio frequencies formed using Fourier synthesis imaging…

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The 14 Best Lego Gifts for Brick Builders (2025)

This message board is great! This is the best idea ever! It’s a decent-sized set with 1,793 pieces aimed at kids ages 9 and up, but my 7-year-old had no problem following the building instructions (I’m assuming he’s pretty experienced). You build the frame and then write your personalized messages by forming letters. There are…

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How to see the shooting stars of Halley’s Comet this October | by Ethan Siegel | Start with a bang! | October 2025

Press enter or click to view full size image This wonderful composition shows an Orionid meteor passing through the large Orion Nebula (M42) as well as the adjacent Running Man Nebula (M43) during deep sky astrophotography. While narrow-field views can sometimes reveal a spectacular individual meteor, wide-field views, such as those obtained with the naked…

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Sexual stings in scorpions: knockout drug or love potion?

Male-to-female poisoning of the same species, although rare, has been documented in all venomous taxa. While traditionally interpreted as a coercive mating strategy to enhance male reproductive success and prevent cannibalism, this explanation may not fully explain the behavior of scorpions, which exhibit minor sexual dimorphism in size and complex courtship rituals. This review explores…

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