For centuries, there have been unconventional beliefs about the shape of the Earth. This post provides a historical overview of alternative theories about the Earth's form.
Learn about the development of the oscillating scan mirror (a key component of Virginia Norwood's multi-spectral scanner), which made Landsat I a success, changing the science of earth observation forever. The development of the oscillating scan mirror is documented in the "Virginia Norwood Papers," a new collection in the Geography & Map Division of the Library of Congress.
Most American cities are encompassed by one or more counties and overlap with them in jurisdiction, but there are 41 unique cases known as independent cities, and 38 of them are in Virginia. Read more to learn why!