The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.

The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...

The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the sky each night after sunset, according to NASA. While Mercury will briefly ...

The full moon in February was dubbed the snow moon due to the heavy snowfall typically seen this time of year, according to ...

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

Four planets will be widely visible to the naked eye through part of February, but calling them a 'planetary alignment' may ...