Astronomy Online: Reason for the Seasons

Part of Astronomy Online

Friday, October 8, 2021

Evergreen tree and deciduous trees with leaves that are changing colors surround a rocky stream. Courtesy of A. Thrasher/Flickr
Why does Earth have seasons, and are there seasons on other worlds? 

The amount of daylight we experience varies throughout the year and from place to place. Some places have longer days and nights than others, and the length of each day changes with the seasons. Blast off into outer space with Museum astrophysicists Jackie Faherty and Daniella Bardalez Gagliuffi to discover why Earth’s tilt is the reason for our seasons, what seasons on our neighboring planets are like, and why.  

Science teacher and Museum Master of Arts in Teaching alum Deion Desir pilots our journey in OpenSpace, the interactive data visualization software designed to visualize the entire universe, taking viewers above Earth’s atmosphere and across our solar system. 

How to Watch

Join the YouTube livestream on Friday, October 8 at 1 pm ET.

Support for Hayden Planetarium Programs is provided by the Horace W. Goldsmith Endowment Fund.