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

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings. However, a rover recently captured a splash of color in the sky as rare ...

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

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...

The moon is an integral part of the sky above us. Over time, each month’s full moon has acquired a unique name of its own: ...

One week ago, a private lunar lander left the ground on a nearly 7-week journey to reach the surface of the moon. The launch may not have had the headline-grabbing power of last year's historic ...

To get it in your inbox, sign up for free here. Landing on the moon is one of the most challenging things humanity has attempted. Perhaps that’s part of what drives us to keep trying.

Rare clouds which have historically been blamed for a number of UFO sightings have been seen over northern skies in the UK. The special cloud formation got its nickname from the smooth ...

In recent years, the United Kingdom has become a hotspot for unusual atmospheric phenomena, including sightings of UFO clouds. While UFO sightings themselves are not new, there has been a notable ...

What has been observed may look like flying saucers but they are actually lenticular clouds, also referred to by some as pancake or UFO clouds. At their most spectacular around sunrise or sunset ...