Dianna Cowern

In 2018, Cowern won a Webby Award for Best Web Personality and was listed in Forbes 30 under 30 in the category of education.

In February 2017, she spoke to Google about 'Becoming YouTube's Physics Girl'. In December 2017, she was featured in an interview in APS News. Cowern has been featured in the Huffington Post, Slate, and Scientific American blogs.

After graduation, Cowern was a research fellow at the Harvard-Smithsonian Center for Astrophysics. Cowern began as outreach coordinator at University of California at San Diego's Center for Astrophysics and Space Sciences. One of her goals is to make science more accessible to girls. She started making science videos while working as an app developer at General Electric. In 2014, she won the top video prize from the Alan Alda Center for Communicating Science at Stony Brook University. She has discussed science on national media, including U.S. News & World Report.

Cowern was born and raised in Hawaii. In the 5th grade, Cowern won a school competition to paint the cover of her school year book, and since then she has been fascinated by science and art. While in high school, she was inspired by Neil deGrasse Tyson and became interested in communicating science. She studied physics at the Massachusetts Institute of Technology, graduating in 2011 with bachelor's degree.

Dianna Leilani Cowern (born May 4, 1989) is a science communicator. She is a YouTuber who uploads videos explaining various physical phenomena to the PBS Digital Studios channel Physics Girl. She has also often collaborated with other STEM-based YouTube personalities, including fellow science communicator Derek Muller of the channel Veritasium, maker Simone Giertz, and mathematics animator Grant Sanderson of 3Blue1Brown.