X-CLASS SOLAR FLARES SHATTER THE QUIET (UPDATED): The sun has been quiet for weeks. That ended today with two powerful X-class solar flares. In quick succession, sunspot 4419 unleashed X2.4 (0107 UT) and X2.5 (0813 UT) explosions. Alerted by the first flare, Austrian astrophotographer Michael Jaeger caught the second:
STARLINK DECLARES WAR ON COMETS: Earlier this year, the number of Starlink satellites in Earth orbit surpassed 10,000. You can see the evidence in the sky:
COMET PANSTARRS AND THE INTERSTELLAR GAS CLOUD: For a few hours yesterday, dim comet C/2021 S3 (PANSTARRS) became one of the most beautiful objects in the Solar System. It was all about the background.