For the next few weeks, the planet Mars will form an isosceles triangle with the two bright stars marking the heads of the ...

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

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

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

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 ...

Evening commuters may have caught an unusual sight yesterday around 6 p.m. Not quite looking like a comet and not quite a cloud, a white form streaked the twilight sky, leaving people wondering ...

The night sky is the window to the rest of our universe but it’s also great for lovers. It’s great being in the dark with the ...

The Falcon 9 rocket, which lifted off from Vandenberg Air Force Base, took flight during evening twilight, when light from ...

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings.

A recent video created from images captured by Curiosity shows clouds tinted red and green flowing though the sky over Mars.

The night sky is the window to the rest of our universe but it’s also great for lovers. It’s great being in the dark with the ...