Tag
Astronomy
2 articles
beginner
Carl Sagan: The Astronomer Who Made the Universe Personal
Carl Sagan made the universe accessible to millions through Cosmos, the 'pale blue dot' speech, and a gift for wonder that reflected his Jewish intellectual heritage.
biographyscienceastronomy
intermediate
Vera Rubin: The Woman Who Discovered Dark Matter
Vera Rubin's observations of galaxy rotation proved that most of the universe is made of invisible dark matter — a discovery that transformed cosmology.
vera-rubinastronomydark-matter