Science & Space

The sun rises in the east because Earth rotates eastward on its axis. As the planet spins counterclockwise when viewed from above the North Pole, observers on the surface encoun...

The starry night is the night sky illuminated by stars, planets, and other celestial objects visible to the naked eye or with tools such as telescopes. On a dark, clear night, t...

Day and night occur because Earth spins on its axis in an eastward direction, completing one full turn roughly every 24 hours. This rotation alternates a given location between...

Aurora Ascension describes the perceived upward movement or rising of auroral displays, often felt as a shift from a grounded glow to a brightening arc or column reaching into t...

Sunspots are cooler, darker regions on the Sun’s photosphere caused by concentrated magnetic fields. They appear as black spots against the brighter solar surface because magn...

A Milky Way finder app helps you locate the Milky Way band in real time using your device’s sensors and current sky conditions. By combining planetarium data, magnetic sensors...

The zodiac constellations are a specific set of 12 (plus one) star patterns that the Sun, Moon, and planets appear to track across the sky over the course of a year. Astronomica...

The mean distance from Earth to the Sun is about 149,597,870,700 meters, equivalent to roughly 149.6 million kilometers or 92.96 million miles. This commonly cited figure is kno...

Jupiter’s temperature range spans extreme contrasts, from frigid cloud tops to scorching deep atmospheric layers. Unlike rocky planets, Jupiter lacks a solid surface, so its t...

The Moon calendar 2019 tracks the monthly changes in the Moon’s appearance from Earth, defined by its phases: new moon, waxing crescent, first quarter, waxing gibbous, full mo...