This beautifully detailed globe lets you explore the amazing geology revealed by New Horizons during its historic 2015 flyby. The post Sky & Telescope s Pluto Globe is Here! appeared first on Sky & Telescope.
Astronomers suspect that a binary star system in Cygnus is preparing to make one star of two, erupting in a red nova visible to the naked eye. The post Stars En Route to Merger appeared first on Sky & Telescope.
Wispy remains of a supernova explosion hide a possible ‘survivor.’ Of all the varieties of exploding stars, the ones called Type Ia are perhaps the most intriguing. Their predictable brightness lets astronomers measure the expansion of the universe,.