101 Must-See Cosmic Objects: M92

One of the northern night sky’s superb globular star cluster wonders is our next target: M92 in Hercules. Visible through binoculars as a diffuse star, M92 is a tantalizing sight through telescopes of all sizes. This understated but fascinating cluster rivals the Great Globular Cluster in Hercules (M13) in wonder, […]

SpaceX launches sixth mission in 17 days

Continuing a record-breaking launch cadence, SpaceX sent a Falcon 9 rocket aloft Sunday from the Kennedy Space Center in Florida with 53 more satellites for the company’s Starlink internet network, the sixth Falcon 9 launch in 17 days and 33rd overall this year.

101 Must-See Cosmic Objects: The Whirlpool Galaxy

M51, the fabulous Whirlpool Galaxy in Canes Venatici, is the largest (in apparent diameter) and brightest face-on spiral in the night sky. It sports the iconic visage of what astronomers call a “grand-design spiral galaxy” — one that displays clearly defined and well-organized spiral structure unwinding in orderly fashion from […]