radio astronomy

  • Fastest-Growing Black Hole Is Eating a Sun Per Day

    Fastest-Growing Black Hole Is Eating a Sun Per Day

    Hey Siri, play Super Massive Black Hole. Our Sun is about 330,000 times the mass of Earth, yet it is dwarfed by the black holes that lurk at the centers of galaxies. A team of astronomers recently found the fastest-growing of this group: a 17-billion solar mass black hole in the distant universe, which is…


  • We’ve Underestimated Our Ability to Spot Alien Signals From Exoplanets

    We’ve Underestimated Our Ability to Spot Alien Signals From Exoplanets

    An encouraging new study has found that the interference from exoplanets—planets that orbit stars outside our solar system—has been overestimated in searches for extraterrestrial signals. The results from the study, released last week in The Astronomical Journal, mean that scientists can concentrate on finer frequency shifts, markedly improving the potential effectiveness of campaigns to sniff…