What time is it on Mars? The 1st precise answer

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.

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…

New observations of “light echoes” reflecting through the Milky Way suggest our galaxy’s supermassive black hole erupted violently in the recent past. The post Milky Way’s central black hole erupted surprisingly recently first appeared on…

Orion the Hunter is one of the easiest constellations to identify thanks to Orion's Belt, the 3 medium-bright stars in a short, straight row at his waist. The post Orion the Hunter is easy to spot in January first appeared on EarthSky.

A powerful blast from the sun triggered a severe geomagnetic storm on the night of January 19, but the auroras weren't as dazzling as hoped. Here's why. The post Severe geomagnetic storm! What happened to the auroras? first appeared on…

The elephant shrew is a small but clever creature. It survives using speed, memory and keen senses in a world where predators lurk at every turn. The post The elephant shrew is a long-snouted speedster first appeared on EarthSky.