Like a celestial parade across the cosmos, five bright planets are lighting up the night sky and visible with the naked eye all February long — with two other planets also detectable for skywatchers ...

With Mercury joining the show, all seven of Earth’s celestial neighbors will be present at dusk this week. By Katrina Miller Astute skywatchers may have already seen the striking line of planets ...

Planets may begin forming much earlier than scientists once believed during the final stages of a star s birth, not afterward. This bold new model, backed by simulations from researchers at SwRI, ...

Fresh off the excitement of the Perseids meteor shower is a chance to see six planets lined up in the sky at once. These events, colloquially known as planet parades, occur occasionally with the most ...