Scientists Puzzled Over Unique Galaxy Merger

Was 49 is the name of a system consisting of a large disk galaxy, referred to as Was 49a, merging with a much smaller "dwarf" galaxy called Was 49b. The dwarf galaxy rotates within the larger galaxy's disk, about 26,000 light-years from

Hubble Spots Real Star Wars in Orion Nebula

The stars were battling each other in a gravitational tussle, which ended with the system breaking apart and at least three stars being ejected in different directions. The speedy, wayward stars went unnoticed for hundreds of years until, over the past few

Ancient Stardust Sheds Light on the First Stars

An international team of astronomers, led by Nicolas Laporte of University College London, has used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe A2744_YD4, the earliest and most remote galaxy the array has ever seen, reports with reference to NASA. [caption id="attachment_1026505"