2018 GE3 swept by at half the moon's distance Sunday, just hours after being detected. Its size is 3 to 6 times that of the space rock that penetrated the skies over Chelyabinsk, Russia, in 2013.
You can't see 3200 Phaethon - parent of the Geminid meteor shower and a strange asteroid-comet hybrid - with the eye alone. But backyard telescopes can pick it up. Charts and more here.
This faint comet reaches perihelion, its closest point to the sun, on October 14. It’ll be closest to Earth on October 18, passing distantly at about 67 million miles (108 million km).
3122 Florence passed yesterday, biggest near-Earth object to pass so close in a century. Radar revealed 2 orbiting moons! Plus a chart that'll help you spot the asteroid.
During a total solar eclipse, the daytime sky darkens, and bright stars and planets pop into view. Charts here, identifying which ones for the August 21, 2017 eclipse.
Whoosh! Astronomers discovered a small asteroid - now designated as asteroid 2017 OO1 - on July 23. That was 3 days after it passed 1/3 the moon's distance from Earth.
Eddie Irizarry of the Sociedad de Astronomía del Caribe (Astronomical Society of the Caribbean) has been a NASA Solar System Ambassador since 2004. He loves public outreach and has published multiple astronomy articles for EarthSky, as well as for newspapers in Puerto Rico. He has also offered dozens of conferences related to asteroids and comets at the Arecibo Observatory.
Asteroid 33012EddieIrizarry, a 7.8 km space rock, has been named in his honor.