"It was surprising, but you like to be surprised in science."
The event horizon is the point of no return beyond which nothing, not even light, can escape the immense gravitational pull of the black hole.
Mark Heyer took 20 years of radio telescope data to create the composition.
Astronomers previously thought these events only occurred around 3 billion years after the Big Bang, but they were happening when the universe was only half that age.
The "unprecedented map" captures the position and brightness of nearly 1.7 billion stars.
Widening waistbands are truly universal.
The Galactic Archaeology survey was launched in a bid to provide new insights into the formation and evolution of the Milky Way.
The black holes surround the supermassive black hole at the center of the Milky Way.
Scientists think the galaxy is expanding at about 550 yards per second.
The planets face supernovas, gamma-ray bursts and gravity-disrupting stars in the crowded center of the Milky Way.
Infrared images can help scientists peek behind the veil of enormous dusty clouds.
Rosette Nebulae are red, O-type stars are blue...
A new theoretical model of dark matter suggests it contains two distinct varieties of charged particles, which would allow it to form compact objects.
The planets sit in a galaxy 3.8 billion light years away.
The discovery marks the first inactive black hole ever found at the heart of a giant globular star cluster.
It's a lot more hectic in the heart of our galaxy than scientists thought.
How do you take a picture of a giant and invisible object?
The weird clouds could come from another galaxy.
It's about the size of 13 Jupiters smooshed together, which means that for a planet, it's really, really big.
A newly "ancient" galaxy may help us better understand how and why galaxies take on their many beautiful shapes and forms.