Planck Standard

Topic

Radio astronomy

10 stories from Planck Standard. Latest: November 10, 2026.

  1. Physics

    Black Holes Ten Times the Sun's Mass and Black Holes Millions of Times Heavier Turn On Their Jets at Exactly the Same Point: When Feeding Drops to 2% of the Eddington Limit

    Tidal disruption events compress a supermassive black hole's feeding cycle from millennia into years. A Curtin-IAS team found the delayed radio jets, arriving hundreds to thousands of days after a star is torn apart, switch on at the same threshold known from X-ray binaries in our galaxy. 'The physics does not seem to care how big they are.'

    3 min read

  2. Physics

    SETI May Have Spent 60 Years Listening on the Wrong Channel

    A Manchester researcher dug into archived ALMA data and searched millimeter frequencies almost nobody has checked for alien signals. No technosignatures — but far more stars surveyed than anyone counted.

    3 min read