Since ‘Oumuamua’s pass through our humble solar system, astronomers stepped up their surveys to spot yet another interstellar visitor. Now meet 2015 BZ509, or “BZ”, who likes the neighborhood so much that the asteroid decided to hang about. How was it found? Read the headline written by Ned Dymoke’s editor. What does it mean? Read […]

Oxygen is the third most common element in the universe, after hydrogen and helium, and in the 1970s astronomers predicted that molecular oxygen would be the third most common interstellar molecule, after molecular hydrogen (H2) and carbon monoxide …