As the Summer Triangle sinks in the west, Altair is the first of its stars to go. Start by spotting bright Vega in the northwest at nightfall. The brightest star above it is Deneb. Altair is farther to Vega's lower left. The post This Week’s Sky at a Glance, December 15 – 23 appeared first […]
A slender Moon is an beautiful and inspiring sight. December and January offer several opportunities to see these exceptional crescents. The post What’s the Thinnest Crescent Moon You Can See? appeared first on Sky & Telescope.
The two-stage Falcon 9 launch vehicle lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station carrying the Dragon resupply spacecraft to the International Space Station. Dragon will bring supplies, equipment and new science experiments for technology research to the orbiting laboratory.