From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or November at intervals of 100.5, 79, 25.5, and 79 years. During these events, Earth and the Moon ...
ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...
Look to the southwestern horizon at sunset on Oct. 23 to see the slender form of the crescent moon shine close to Mercury and Mars in the evening sky. The 6%-lit waxing crescent moon will be visible ...