Scientists believe there are more pieces of plastic in the ocean than stars in the Milky Way.
Harvard’s Ana Bonaca says there is evidence of a “dark substructure” in the Milky Way’s halo.
The collision took place 10 billion years ago, when the universe was just three or four billion years old.
The observations offer "a resounding confirmation" of the supermassive black hole long-believed to be lurking at the heart of our galaxy.
The scene shows a vast, colorful cloud of gas and dust dotted with numerous bright young stars.
Researchers used the European Space Agency's star-mapping satellite to make a stunning discovery about the Milky Way.
The galaxy belongs to a recently discovered, rare and unusual class of stellar systems known as ultracompact dwarfs.
The image reveals in incredible detail a fiery region surrounding the supermassive black hole that lies at the heart of the Milky Way.
The image confirms baby planets slice through their host star's dusty disks, leaving holes and rings in their wake.
Diamonds are an astronomer's best friend.
"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.