What’s the coldest Earth has ever been?

Our planet’s history includes episodes of cold so extreme that glaciers reached sea level in equatorial regions. Source: https://earthsky.org/earth/whats-coldest-earth-has-ever-been…

When will Betelgeuse explode?

The red supergiant star will explode in a supernova, close enough to shine brightly during the day but far enough away that Earth won’t be in danger. Source: https://earthsky.org/brightest-stars/betelgeuse-will-explode-someday…

Moon, Mars, Uranus January 19, 20, 21

Over the next several evenings – January 19, 20 and 21, 2021 – let the moon show you the red planet Mars, and then use Mars to find the distant ice giant planet, Uranus. Source: https://earthsky.org/tonight/moon-mars-uranus-january-19-20-21…

Neptune’s Weird Dark Spot Just Got Weirder

Neptune boasts some of the strangest weather in the solar system. The sun’s eighth planet holds the record for the fastest winds observed on any world, with speeds cutting through the atmosphere upward of 1,100 miles per hour, or 1.5 times the speed of sound. Scientists still don’t know exactly why its atmosphere is so tumultuous. Their latest glimpse of Neptune…

Last quarter moon on November 8

Get up early, around the break of day tomorrow – November 8, 2020 – to see the moon at or near its last quarter phase, and assuming the position of the August noonday sun. Source: https://earthsky.org/tonight/last-quarter-moon-on-november-8…