Imagining familiar images in the sky has always been an easy way to track the annual progress of the stars. Around the second century C.E., the Greek astronomer Claudius Ptolemy listed 48 “official” ...

This week’s naked-eye object is the constellation Crater the Cup. Five constellations border Crater: Corvus the Crow, Hydra the Water Snake, Leo the Lion, Sextans the Sextant, and Virgo the Maiden.

Orbiting observatories were supposed to escape the glow and clutter that plague ground-based astronomy, but the next generation of satellite networks is rapidly erasing that advantage. As commercial ...

The evening skies in March offer you a very obvious contrast between seasonal constellations. The many brilliant stars that make up winter constellations are in the western half of the sky, while the ...

Constellations through the ages -- Constellations of the zodiac -- An astronomy primer -- Watching the skies -- How this book is organized -- The greek alphabet -- Map of the northern sky -- Map of ...

Planet is building Pelican satellites to gather imagery with a resolution as high as 40 centimeters per pixel. Credit: Planet KIHEI, Hawaii — The Federal Communications Commission is requiring more ...

January for lovers of astronomy is highlighted by the Quadrantid meteor shower, as Greg Redfern highlights in January’s edition of “Eyes to the Skies.” ...