Skype has 14 partnerships that help connect teachers with experts at Microsoft (which owns Skype), Penguin Books and the New York Philharmonic, to name a few. NASA’s Digital Learning Network partnered with the Internet phone service last month because web conferencing is dramatically cheaper for teachers to set up than video-conferencing systems, which can cost tens of thousands of dollars, according to Lead Education Specialist Caryn Long and fellow Education Specialist David Alexander. NASA would give out grants to certain schools so that they could purchase the video technology, but Long and Alexander hope their team will be able to reach more students nationwide via Skype, and therefore get more youngsters revved about STEM (Science, Technology, Engineering, Mathematics) — especially at a time when the STEM workforce is growing faster than the workforce overall. This month, NASA has started offering to teach aeronautics and “pulsar algebra,” which combines Math with the study of stars.