Unit Vocab and Parallax.pptx
Timeline of the universe.pptx
Components of the universe - Star creation and Constellations.pptx
Components of the universe - Spectroscopy.pptx
Components of the universe - Lumenosity & HR Diagram.pptx
Components of the universe - Galaxies and Big Bang.pptx
Components of the universe - EM Spectrum.pptx
ch24.ppt