The latest photo challenge calls for you to take and send in your best pictures of trees. Here's how to enter.

Physicists from the group of Jorik van de Groep at the UvA-Institute of Physics have devised a new method that can be used to detect edges of images in ... performed using light, even before ...

Jan. 22 (UPI) --A mysterious green light caught on camera in the night sky over Ontario was "most likely" a meteor, one expert said. A Stittsville resident's doorbell camera captured footage of ...

The visible light images were acquired using the DJI Mavic 2 drone ... but also improving the model’s ability to recognize green backgrounds as yellow diseased trees. The improved YOLO v4 model can ...