Cassiopeia, the Queen
The best time to see her is in late fall, when she stands high in the northeastern sky during the […]
Capricornus, the Sea-Goat
Capricornus looks like a large triangle of fairly bright stars. The brightest stars are side-by-side at the triangle’s western tip.
Scorpius, the Scorpion
The brightest star in Scorpius is Antares, which is in the middle of the scorpion’s curving body. This brilliant red
Lyra, the Harp
The legend of Lyra tells the story of Orpheus, who was given a harp by the god Apollo. Orpheus’ music
Cygnus, the Swan
The constellation’s brightest star is Deneb — an Arabic word that means “the tail.” Deneb represents the tail of the
Aquila, the Eagle
The brightest star in Aquila is Altair, “the eagle,” a white star that is about 17 light-years from Earth. Altair
Boötes, the Herdsman
Arcturus, the fourth-brightest star in Earth’s night sky, is about 25 times larger than the Sun, and it produces about
Energy: Tools of the Trade
When we look at a rainbow, we see sunlight spread out into red, orange, yellow, green, blue, and violet. But
Age of the Universe
Astronomers use several different methods to date the universe. In recent years, results from these differing methods have been coming
Galaxies Fade
On the human time scale, the Milky Way galaxy is eternal. The starry Milky Way shined down on the first