William John Macdonnell, Mrs Macdonnell, Nathanial Basnett and G. D Hirst in front of W. Macdonnell’s private observatory in Mosman, Macdonnell was a leading member of the NSW branch of the British Astronomical Association.
Nasa lançará telescópio de raios-X com precisão inédita
Image above: This artist's conception shows a hypothetical habitable planet, orbiting a red dwarf star, with two moons. Astronomers have found that 6 percent of all red dwarf stars have an Earth-sized planet in the habitable zone.
Using DarkHoles To Spot Planets These two images show HD a nearby star times larger than the sun. Project 1640 uses new technology on the Palomar Observatory's Hale telescope near San Diego, Calif., to spot planets. Credit: Project 1640 Publication Date: