What: For centuries farmers have looked skyward to get a sense of when to plant, plow and harvest. But today, new satellite-monitoring equipment makes it possible to receive detailed information about crop growth, insect pests, irrigation and soil conditions. As part of the NASA-sponsored workshop "Remote Sensing Science for Agriculture in the 21st Century," state-of-the art sensor technology will be demonstrated. Leaders from the agricultural and aerospace industries, government and academia will be on hand to comment on the use of remote sensing in agriculture. When: Thursday, Oct. 24, at noon Where: Buehler Alumni and Visitors Center, UC Davis (meet in the lobby, demonstration will be in adjacent field) Visuals: A variety of remote-sensing equipment will be demonstrated, including tractor-mounted devices used to "map" soil texture and compaction in an agricultural field. The equipment, which makes use of a radar gun and sensors to measure load, speed, and soil depth and moisture, provides valuable information about crop yield. Satellite signals are used to tell the grower exactly where in the field the tractor is so that operations can be adjusted accordingly. Directions Take the UC Davis exit from Interstate 80. Head to the main and Parking: campus on Old Davis Road, passing the information kiosk. At the first stop sign turn right, remaining on Old Davis Road. Proceed to the first stop light and turn right onto Mrak Hall Drive. The alumni and visitors center is on the corner of Mrak Hall Drive and Old Davis Road. To park free, a business card should be placed on the dashboard.