A new ultra-precise atomic clock outperforms existing microwave clocks in time-keeping and sturdiness under real-world conditions. The clock, made by a team of researchers...
IntroductionUnlike many astronomers, Erin Kara didn’t grow up star-struck. “I don’t have that story of being that little kid staring up at the stars...
Blazars are powerful active galactic nuclei in which supermassive black holes eject relativistic jets directed along our line of sight. A blazar can shine...
