Up here on the International Space Station I don ... in and out of the light from the Sun, moving between day and night. Image caption, The part of the Earth facing the Sun is lit up, making ...

Undeniable is that the Sun’s rays are essential to life on Earth, while the day-night cycle (as ... of the notion of trying space mirrors for chasing the night away. When it is not ruining ...

The Earth's tilt of approximately 23.5 degrees on its axis is the primary reason for the occurrence of the winter solstice ...

The winter solstice is today, bringing the shortest day and longest night of the year to the Northern Hemisphere.

As the Earth travels around the Sun, it does so at an angle. For most of the year, the Earth’s axis is tilted either toward ...

Moon phases reveal the passage of time in the night sky ... of the moon is facing away from Earth, toward the sun. The moon is also in the sky during the day, and without its Earth-facing side ...

While it's often believed that the winter solstice is a whole day event, the solstice actually lasts just a moment.

The gas giant will shine brightly all night, offering stunning views for skywatchers. There will be a major astronomical event on December 7th when Earth will align itself between the Sun and Jupiter.

These "massive fireballs" that blow out of the Sun's outermost layer can significantly affect the weather on Earth and satellites in space, said BBC News. A single CME "could weigh up to a ...