Virtual Visits can connect your students with NASA experts. Image Credit: NASANASA Digital Learning Network™ Virtual Visits is separate from the standard DLN programs we offer. This is an opportunity for 4th - 12th grade teachers who are looking for a way to connect their students with NASA experts. The DLN is offering to locate NASA experts who can address specific areas of student interest in science, technology, engineering and mathematics, or STEM, related to NASA's missions and research. The online sessions will bring an expert into your learning environment for a 45-60 minute interactive Virtual Visit with your students. The DLN will connect with your learning environment through videoconferencing, webcam and other online technologies.