GENERAL KNOWLEDGE

Detailed explanation-1: -Like the Hubble Space Telescope, Edwin Hubble’s discoveries transformed the frontier of scientific knowledge. His work took us beyond the Milky Way and placed us in an ever-expanding universe with a myriad of galaxies beyond our own.

Detailed explanation-2: -In 1929, Edwin Hubble, an astronomer at Caltech, made a critical discovery that soon led to scientific answers for these questions: he discovered that the universe is expanding.

Detailed explanation-3: -In one of the most famous classic papers in the annals of science, Edwin Hubble’s 1929 PNAS article on the observed relation between distance and recession velocity of galaxies-the Hubble Law-unveiled the expanding universe and forever changed our understanding of the cosmos.

Detailed explanation-4: -American astronomer Edwin Hubble and others discovered in the 1920s that the Universe is expanding by showing that most galaxies are receding from the Milky Way-and the farther away they are, the faster they are receding. The roughly constant ratio between speed and distance became known as the Hubble constant.