NASA
Taking Apart the Light
Break down light into spectra. Scholars learn how atoms emit and absorb photons and come to understand how this process allows scientists to identify different atoms based on either absorption lines or emission lines. Learners then...
Other
Iau: Pluto and Our Developing Solar System
Discover how varying view in regards to Pluto has changed views on our solar system.
Exploratorium
Exploratorium: Ice Stories: Dispatches From Polar Scientists: Greenhouse Gases
Polar scientists offer an article identifying the research and observations made on greenhouse gases. Why is there so much carbon dioxide in the atmosphere today? Scientists work diligently to determine the causes and effects of these...
Other
U of Cambridge: Tycho Brahe and the Separation of Astronomy From Astrology
The subject of the paper is the shift from an astrology-oriented astronomy towards an allegedly more objective, mathematically grounded approach to astronomy. This shift is illustrated through a close reading of Tycho Brahe's scientific...
Seeker
Seeker: Galaxies Undergo Dramatic Metamorphosis
Article reports on the changes galaxies have experienced that can be observed with the Hubble telescope.