Earth's history is a roller-coaster of climate fluctuations, of relative warmth giving way to frozen periods of glaciation before rising up again to the more temperate climes we experience today.

Saturn's rings tilt out of view every fourteen to seventeen Earth years. In 2032, they will be at their best again during ...

The word equinox comes from two Latin words meaning equal and night. That’s because on the equinox, day and night last almost ...

The Northern Hemisphere is welcoming Spring 2025 on March 20, also known as the vernal equinox. The jump into spring has come ...

Here’s what to know about how we split up the year using the Earth’s orbit. As the Earth travels around the sun, it does so at an angle. For most of the year, the Earth’s axis is tilted ...

the precession of its rotational axis and the shape of Earth's orbit around the sun. Obliquity refers to Earth's tilt. Imagine drawing a straight line through Earth, along its rotational axis ...

The vernal equinox signals the astronomical start of spring in the Northern Hemisphere, with the sun crossing ... due to the Earth’s tilt and the planet's position in its orbit around the ...

The events have been marked and celebrated around ... sun’s warmth and light fall unequally on the northern and southern halves of the planet. During the equinox, the Earth’s axis and its ...

Did you know both the astronomical first day of spring and Easter Sunday are tied to the spring equinox? How they relate, what to know for spring 2025.

Saturn's rings ... one orbit around the sun every 29.4 Earth years. During this cycle, the visibility of Saturn's rings when viewed from Earth changes because the planet rotates on an axis tilted ...