Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's ...

Slow orbital changes caused pulses in Earth's oxygen cycle 500 million years ago, which spurred explosions of animal life.

Earth’s path around the Sun is not a fixed racetrack but a slowly shifting orbit, and those subtle changes have a long history of reshaping the planet’s climate. As astronomers refine how these ...

An animation showcases how the seasons change with Earth's orbit around the sun. Earth's axis tilt causes very specific weather patterns and daylight during the course of a year. Most places ...

Discover Earth’s unique features—water, atmosphere, magnetic field, life-supporting climate, and 10 key facts about our home planet. Learn what makes Earth truly special.

Earth will have an extra moon for a couple of weeks this fall, and it may return for a second round in a few decades. A 33-foot asteroid named 2024 PT5 is expected to be pulled into orbit around the ...

Earth's orbit is an ellipse, not a perfect circle. Earth's distance from the Sun varies by about 3 million miles throughout the year. Earth's orbit's semimajor axis is approximately 93 million miles.

The winter solstice marks the shortest day and longest night of the year, but when is it in 2025 and what more does it ...

Earth’s climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet’s ...