A file photo of children gathered at the Jawaharlal Nehru Planetarium to witness the zero shadow phenomenon Can you calculate the circumference of the earth using the length of a shadow? Sounds ...

Bengalureans to observe no-shadow day today; experts explain this annual occurrence Bengalureans will witness their shadows playing tricks for the second time this year, lasting two minutes today.

Winter solstice occurs this year on Dec. 21 at 4:19 a.m. ET. You can see your longest shadow on the winter solstice. Be a scientist and get a pen, notepad and measuring tape to record your shadow.