On the following Mondays the Mystery sites record their sunrise/sunset data. We collect the data and link to it here on Fridays, four days later.

• Data from Jan 28 (reported Feb 1)
• Data from Feb 4 (reported Feb 8)
• Data from Feb 11 (reported Feb 15)
• Data from Feb 18 (reported Feb 22)
• Data from Feb 25 (reported Mar 1)
• Data from Mar 4 (reported Mar 8)
• Data from Mar 11 (reported Mar 15)
• Data from Mar 18 (reported Mar 22)
• Data from Mar 25 (reported Mar 29)
• Data from Apr 1 (reported Apr 5)
• Data from Apr 8 (reported Apr 12)

• Read March 15, 2013 Update to find Longitude Clues and related resources.

• Sunrise/Sunset Lookup
• Datasheet and Graph
• Journal
• Calendar
• Latest News

Beginning in March, interdisciplinary clues— about the climate, geography, history and other facts—are posted here on the Fridays.

• March 22
• March 29
• April 5
• April 12

• Clues from Mystery Class #1
• Clues from Mystery Class #2
• Clues from Mystery Class #3
• Clues from Mystery Class #4
• Clues from Mystery Class #5
• Clues from Mystery Class #6
• Clues from Mystery Class #7
• Clues from Mystery Class #8
• Clues from Mystery Class #9
• Clues from Mystery Class #10