Laser Stars - History of Astronomical Spectroscopy History of Astronomical Spectroscopy Astronomical spectroscopy played a crucial role in the elucidation of the physics of stellar atmospheres. This section goes into a detailed historical review of various objects and elements discovered spectroscopically in outer space, such as the supposedly 'new' elements nebulium and coronium.
Emphasis is placed on comparing historical precedents with current debates concerning laser stars .
It is concluded that some astronomical puzzles take decades to solve after many false trails and bogus theories. One hundred and fifty years of astronomical spectroscopy , Cambridge Univ.