What causes tides?
For the most part, the rise and fall of the tides is caused by the gravitational influence of the Moon. […]
For the most part, the rise and fall of the tides is caused by the gravitational influence of the Moon. […]
The farthest known object orbiting our Sun is a ball of ice and rock unofficially called FarFarOut, which lies about
No. On August 23, 2006, the International Astronomical Union decided that the solar system contains only eight planets. Pluto, which
Alignments of the fast-moving inner planets can occur as regularly as every few months or so, while groupings of the
Because stars are so incredibly distant, to our eyes they appear strictly as points in the night sky. Irregularities in
Earth’s circumference was first accurately measured more than 2,000 years ago by the Greek astronomer Eratosthenes, who at the time
To begin with, Earth is rotating on its axis at the familiar rate of one revolution per day. For those
The famous Northern and Southern Lights — Aurora Borealis and Aurora Australis for those Latin lovers among us — are
The “Moon illusion,” in which the Moon appears larger than normal when close to the horizon, is not the result