Cancer, the Crab
It is a small constellation of faint stars, so it is difficult to find in the sky. In mythology, it […]
It is a small constellation of faint stars, so it is difficult to find in the sky. In mythology, it […]
Libra’s brightest stars, however, are named for the next constellation over, Scorpius. The stars are Zubenelgenubi and Zubeneschamali, which are
Several thousand years ago, when the zodiac was first drawn, the Sun stood inside Aries at the time of the
Aries is famous not because of its brilliance, though, but because of its location: It is one of the 12
In the winter of 1504, astronomer Nicolaus Copernicus watched as the planets Mars, Jupiter, and Saturn grouped close together in
Yet many remained, and are still with us today: a small planet (and maybe more than one), icy planetesimals that
The solar system’s outer realm contains four giant planets. The largest is Jupiter, at about 11 times Earth’s diameter. Despite
The structures of the terrestrial planets are similar. Each planet has a layered structure that developed through a process called
That is a tricky question, which astronomers didn’t answer correctly until fairly recently. For a while, they thought the biggest