The celestial bodies near us, the sun and the moon and the planets, all seem to arc across the sky every day and night from east to west on that same imaginary track. From the Earth's surface ...

Sucerquia and colleagues selected five sets of spherical moons and their neighboring planets, including Earth and the moon. For each set, the team added rings to all the satellites, then simulated ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Mars has just reached opposition—meaning the Earth is directly between it and the sun—so the Red Planet will appear at its biggest and brightest and will be visible all night. Mars is easily ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.