When the Sun is near the horizon, its light passes through a lot more of the atmosphere to reach the Earth's surface than ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

with blue skies, strong winds, swift-sailing clouds and, at daylight’s end, a blazing spectacle of a sunset. It was a warm enough day, with an official high afternoon temperature of 58 degrees ...

It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation ...

However, the higher it is in the sky, the easier it is to see, so get outside about 45 minutes after sunset just as a deep blue twilight takes hold. It is then that a bright Venus will most ...

Blue Ghost—named after a rare firefly ... when it will capture the first-ever photos of a sunset on the moon. "Ghost Riders in the Sky" is being conducted as part of NASA's Commercial Lunar ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...