Our Solar System From our small world we have gazed upon the cosmic ocean for thousands of years. Ancient astronomers observed points of light that appeared to move among the stars. They called these objects “planets,” meaning wanderers, and named them after Roman deities—Jupiter, king of the gods; Mars, the god of war; Mercury, messenger [...]
P.O.V.’s Borders What is a border? How much is real, and how much is in your mind? ‘P.O.V.’s Borders’ is an on-going web-original series that explores the borders in our lives with new themed installments launched annually. Each episode will ask visitors to consider an aspect of their everyday lives in ways that challenge their [...]
Spirit: A Retrospective Launched in 2003 for what was to be a 90-day mission to explore the Red Planet, the Mars Exploration Rovers – Spirit and Opportunity – have exceeded their operational lives many times over. Spirit was launched in January 2004. During six years on Mars, the rovers have traversed section of the planet [...]
Seasons Interactive Everyone knows that it’s warmer in the sumer than in the winter, but why is that? With this interactive, you can examine the main factors which affect temperature: the position of the Earth in its orbit around the Sun, the tilt of the Earth’s axis of rotation, and the path of the Sun [...]