Orion the Hunter is back in the evening sky

Astronomers witnessed a giant gas cloud pass in front of its star. A mysterious object is hidden in the gas cloud: likely a planet, brown dwarf or small star. The post Giant gas cloud holds mysterious object, astronomers say first appeared…

Voyager 2 met Uranus on January 24, 1986. The spacecraft sent data that revealed 2 new rings, 10 new moons, radiation belts, and a very unusual magnetic field. The post Voyager 2 met Uranus 40 years ago first appeared on EarthSky.

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Where do we live in the Milky Way galaxy? We lie between the major arms in a smaller spiral arm known as the Orion Arm. See diagrams here. The post Which Milky Way spiral arm contains our sun? first appeared on EarthSky.

A major winter storm is set to impact millions across the United States. Heavy snow and significant ice is possible starting Friday night. More info here. The post Major winter storm set to impact large swath of the U.S. first appeared on…