Leo P, a tiny galaxy, stopped making stars after the universe’s reionization. Unlike most galaxies, it restarted billions of ...

Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

A massive white dwarf and a sun-like "blue lurker" star tell a remarkable story of what was once a triple-star system in the ...

Mars shines brightly this week as it reaches opposition, appearing golden-red in the sky near Jupiter. Look for it in the ...

Microsoft Threat Intelligence observed the Russian threat actor we track as Star Blizzard sending their typical targets spear ...