Are you looking to do a PhD in astronomy? Are you interested in radio stars and exoplanets? Then you should apply to do a PhD at @api.uva.nl with me! You can find more about the exciting project below. Applications are due 3rd of November! api.uva.nl/vacancies/ph...

A 🧵 For centuries, Betelgeuse, the iconic red supergiant in Orion, has fascinated astronomers with its changing brightness. Why does its light vary over a ~6-year cycle? Thanks to the Gemini North telescope, we now have an answer: Betelgeuse has a companion star! 🔭 🧪 #stellarastro #galactic

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🆕For the first time, astronomers using our Cheops mission have caught a planet triggering flares of radiation from the star it orbits 🪐💥 These tremendous explosions are blasting away the planet’s wispy atmosphere, causing it to shrink every year. Find out more 👉 www.esa.int/Science_Expl... 🔭 🧪

🪐 Planet self-roast! Two NEW papers on HIP 67522, a young star with two close-in giants and clear signs of magnetic star–planet interaction. The inner planet triggers flares on its host star, exposing itself to a 6 times higher flaring rate than without interaction. #astronomy #exoplanets

Very small flares on a very small star with a bag full of very small planets. Detecting atmospheres on these terrestrial companions keeps challenging astronomers. Great work by Julien de Wit et al.! #trappist-1 #habitability #exoplanets #hubble www.newscientist.com/article/2485...

#EAS2025Cork just kicked off. Over 1500 astronomers and space scientists gathered for the largest astronomical conference ever held in Ireland. The conference is hosted by @ucc.ie at their amazing campus. 500 participants attend online.