Each evening throughout the month of August, we can see the planet Mars in the western sky after sunset. To find it, look for ...

The crescent moon will be visible 20 degrees above the western horizon at sunset on July 28, with Mars appearing as a bright ...

On a sunny day, shorter wavelengths (like blue and violet) scatter most effectively due to Rayleigh scattering, which is precisely why the sky is blue. At sunset, however, sunlight travels a much ...

Don't miss the waxing crescent moon shine alongside Spica and the stars of the constellation Virgo in the hours following ...

Pluto reaches opposition and the Moon waxes to First Quarter as shooting stars streak through the sky this week.

Look west at sunset to find the razor-thin crescent moon hanging less than 10 degrees above the horizon. Regulus will appear ...