CHICAGO - Every spring and fall, Chicago’s skyline transforms into the perfect frame for a celestial event known as ...

Chicagoans can get a glimpse of the sun perfectly aligning with Chicago's east-west streets during sunrise and sunset.

While Chicago got a blast of summer-like temperatures on Friday and well above-average temperatures Saturday, astronomical ...

Chicagohenge is a stunning biannual event that happens during the spring and autumn equinoxes, when the sun aligns perfectly with Chicago’s street grid.