Source: USGS
Quote to note:
“Landsat 8 is part of a revolution of how much remote sensing can do to track the polar areas.”

STELLA: A DIY Handheld Scientific Instrument
If you are looking for a do-it-yourself (DIY) handheld spectrometer, you need to meet STELLA. STELLA (Science and Technology Education for Land/Life Assessment) is a portable scientific instrument developed by