SMD
Science Mission Directorate, NASA (previously Office Of Space Science, OSS).
Science Mission Directorate, NASA (previously Office Of Space Science, OSS).
Defines a day as the sum of 24 hours but that is not quite correct. In , most days are ...
A phenomenon that occurs when the Earth passes into the shadow of the Moon. A total solar eclipse occurs when ...
Material that allows safe viewing of the Sun by blocking nearly all of its light. Proper filters should completely cover ...
A bright eruption of hot gas in the Sun's photosphere. Solar prominences are usually only detectable by specialized instruments but ...
The cloud of dust and gas out of which the Solar System was believed to have formed about 5 billion ...
Solar noon occurs when the Sun crosses a location's meridian and reaches its highest position of the day. In most ...
A piece of material that can capture sunlight and turn it into electricity.