With a solar eclipse anticipated in the United States in a month, NASA and the American Astronomical Society warn that not all solar eclipse viewing glasses are safe.
With a solar eclipse anticipated in the United States in a month, NASA and the American Astronomical Society warn that not all solar eclipse viewing glasses are safe. Handout TNS
With a solar eclipse anticipated in the United States in a month, NASA and the American Astronomical Society warn that not all solar eclipse viewing glasses are safe. Handout TNS