In the N. Hemisphere, the annual August Perseid meteor shower ranks as the year’s favorite shower. A big, bright supermoon interferes in 2014. So start observing the Perseids soon!
The Andromeda galaxy is approaching our Milky Way galaxy across the vastness of space. When will they collide?
Remember the Camelopardalids, the meteor shower earlier this year astronomers said would be spectacular … except it wasn’t? Now, the same astronomers explain why.
Mars has two moons, Jupiter has 67, Saturn 62, Uranus 27, Neptune 14. But our planet Earth has just one moon. Doesn’t it?
The longest lunar month of 2014 will start August 25 and end September 24. All you need to know about the varying lengths of the lunar months, here.
Most distant planets known so far orbit close to their stars and thus have a short “year.” Kepler-421b has a year about twice as long as Earth’s.
Twilight is the time of day between daylight and darkness. Astronomers, the experts on nighttime, recognize three kinds of twilight.
The year 2014 has a total of five supermoons. They are the two new moons of January, and the full moons of July, August and September. Next supermoon: August 10.
Today is the 45th anniversary of humanity’s historic first steps on the moon. “One small step for [a] man, one giant leap for mankind.” The story in pictures.
On July 19, 2013, the Cassini spacecraft acquired a distant image of our home world, as we Earth citizens cast our thoughts spaceward.