Comet NEOWISE closest to Earth on July 23 | Space | EarthSky
HI ALL!!!!! This is a bit of a long shot. I haven’t seen it yet but I know it’s right close to visibility. I don’t think you’ll see a tail and all sorts of exciting stuff but it WILL be visible to the naked eye and the very idea of it is rare and…
Twinkle, Twinkle, Satellite Vermin
Is a deliberately shining satellite in the sky a cute idea or a menace?
Go young moon hunting | Tonight | EarthSky
Given an unobstructed horizon in the direction of sunset, most of us around the world should spot a thin crescent moon not long after the sun goes down.
Video – Five New pairs of merging supermassive black holes discovered
Astronomers have found five new supermassive black holes in the centers of galaxies. When galaxies collide and merge with each other, it can force their supe…
2.8 Million Stars Sparkle in This Incredible Image of the Milky Way
The Gaia star surveyor captured a densely packed area near the center of the galaxy
Cassini finds ‘big empty’ near Saturn
It’s not totally empty, but the space between Saturn and its rings is much emptier than scientists expected. Cassini will make its 2nd dive through this gap at 3:38 p.m. EDT
Asteroid close encounter on April 2
The near-Earth asteroid 2017 FU102 has a very close, but safe, encounter with Earth on April 2, 2017, sweeping to within just over half the moon’s distance.
Happy 30th Birthday, Supernova 1987A – Sky & Telescope
The brightest supernova since the invention of the telescope erupted 30 years ago. The remnant of the supernova explosion continues expanding.
Circumpolar stars never rise or set
Circumpolar stars always reside above the horizon, and for that reason, never rise or set. All the stars at the Earth’s North and South Poles are circumpolar. Meanwhile, no star is circumpolar at the equator.
Groundhog Day has roots in astronomy
Groundhog Day is tied to the movement of Earth around the sun. It’s the year’s first “cross-quarter” day.