A star’s fatal brush with a supermassive black hole can light up a quiet galaxy. When gravity shreds the star, its gas ...
A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 sparks ultra-fast winds, offering new clues about ...
A new study, appearing in The Astrophysical Journal and based on observations from NASA's Chandra X-ray Observatory, ...
Smaller black holes tend to attract less material, making them naturally dimmer. Chandra would miss many of these faint ...