Large galaxies grow by eating small ones. Even our own galaxy practices galactic cannibalism, absorbing small galaxies that get too close and are captured by the Milky Way's gravity. In fact, the practice is common in the universe and illustrated by this striking pair of interacting galaxies from the banks of the southern constellation Eridanus, The River.
Located over 50 million light years away, the large, distorted spiral NGC 1532 is seen locked in a gravitational struggle with dwarf gala [...]
Hundreds of hidden nearby galaxies have been studied for the first time, shedding light on a mysterious gravitational anomaly dubbed the Great Attractor.
Despite being just 250 million light years from Earth—very close in astronomical terms—the new galaxies had been hidden from view until now by our own galaxy, the Milky Way.
Using CSIRO’s Parkes radio telescope equipped with an innovative receiver, an international team of scientists were able to see through the stars and dust of th [...]
The Expedition 46 crew members participated in immunology research today helping scientists learn to keep astronauts healthy on longer and farther space missions. The crew also continued more vision checks and explored heart health.
Commander Scott Kelly, British astronaut Time Peake and cosmonaut Mikhail Kornienko each participated in a different experiment looking at the immune system of space residents.
Kelly collected body samples looking for microbes that could potentially cause infec [...]