Edwin Hubble Edwin Hubble Edwin Powell Hubble (November 20, 1889 – September 28, 1953) was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time. Hubble discovered that many objects previously thought to be clouds of dust and gas and classified as "nebulae" were actually galaxies beyond the Milky Way. He used the strong direct relationship between a classical Cepheid variable's luminosity and pulsation period (discovered in 1908 by Henrietta Swan Leavitt) for scaling galactic and extragalactic distances. Hubble provided evidence
Beyond the Grave Beyond the Grave Beyond the Grave is the fourth book in "The 39 Clues" series first published in June 2, 2009 and written by Jude Watson. Thematically the novel uses Biblical knowledge, prophecy, and spiritual topics to explore the afterlife. Amy and Dan Cahill, the protagonists, travel to Egypt because of a clue they discovered in "The Sword Thief". The symbols in the middle of the book translate "Alistair was there the night they died." "Beyond the Grave" was awarded one of "Good Morning America" pick for teen summer reading. Amy and Dan head for Cairo, Egypt, with their au