Dozens of satellites are busy day and night, beaming your favorite TV and radio programs from more than 35,000 miles away. Here's how to tune into them.
The International Space Station passes over virtually all of Earth's populated areas, and you can spot it easily with your eyes alone — if you know where and when to look for it.
The International Space Station often passes close to the Moon, Sun, and naked-eye planets. Use this tool to plan viewing these close encounters.
Russia's first crowd-funded satellite, named Mayak (Russian for "beacon of light"), promises to be the “brightest object in the night sky next to the Moon.”
The shock and dazzle of Iridium flares will soon be a thing of the past. Here's how to make the most of seeing them before they're replaced by a new generation of satellites.
Channel your inner superpower by looking up at the night sky precisely when a dazzling blaze of light is beamed to Earth from outer space.
For a few days each May, you might see the International Space whenever it passes overhead throughout the night.
These communications satellites can briefly outshine Venus as they spray the ground with reflected sunlight.
It’s a bird! It’s a plane! It’s the International Space Station! Learn how to spot Earth's artificial satellites.
The Iridium satellites' antenna arrays are almost perfect mirrors. And when they catch the Sun just right wow!