The 2025 summer solstice takes place on June 20, heralding the onset of astronomical summer and the longest day of the year. Sunlovers rejoice, for the summer solstice is upon us, bringing the longest ...

Most people have never seen the Little Dipper, because most of its stars are too dim to be seen through light-polluted skies. Earlier this month, we spoke of Ursa Major, the Big Bear, so this week we ...

A rare glimpse into the wintry conditions of the Mars north polar vortex has shown that temperatures inside the vortex are far colder than outside, and that the permanent darkness that winter brings ...

Nicole Las is now one of 134 women in the world to have completed a marathon in the North Pole, and she credits more than 20 years of Chicago winters for helping her cross the finish line. "A lot of ...