Every January, Earth reaches its closest point to the Sun, known as perihelion. Yet, it’s winter in the Northern Hemisphere.

When Santa is done delivering presents on Christmas Eve, he must get back home to the North Pole, even if it’s snowing so ...

Winter solstice 2025 is here —find out why it’s important for the season and when we can look forward to spring.

According to the patent, habitable modules would rotate around a central axis to simulate gravity for crew by producing an outward-pushing centrifugal force.

Earth is often described as a circle or an oval, but it is neither. As the planet spins more than 1,000 miles per hour at the ...

The first day of inter was Sunday December 21, the time of year in the Northern hemisphere when the Earth's axis is tilts most strongly away from the sun.

The Winter Solstice is the shortest day and the longest night of the year, and it officially marks the start of winter.

"While Earth completes a single rotation on its axis, the ISS orbits the planet 16 times," Sergey Kud-Sverchkov said ...

The winter solstice happens once a year when the Earth’s axis is tilted furthest from the sun in the northern or southern ...

Long before modern science explained the phenomenon, ancient cultures recognized the solstice as a moment of renewal.

The winter solstice arrived at 7:03 a.m. PST on Dec. 21, making Sunday the shortest day of the year in the Northern ...

Sunday marks the shortest day of the year in the Northern Hemisphere, signaling the start of astronomical winter.