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Current Affairs - 2019
Which telescope is used for confirming that the Universe is expanding about 9% faster than expected?
Hubble Space Telescope
Keck Observatory
Galileo National Telescope
Spitzer Space Telescope

Correct Answer : Option (A) - Hubble Space Telescope

The National Aeronautics and Space Administration (NASA)'s Hubble Space Telescope ejected measurements validate that the Universe is expanding about 9% faster than expected based on its trajectory seen shortly after the big bang. It was published in Astrophysical Journal Letters on April 25.The researchers using Hubble as a "point-and-shoot" camera to look at groups of Cepheids using a new method called DASH (Drift And Shift), while Hubble can observe one star for every 90-minute orbit around Earth.Adam Riess, Bloomberg Distinguished Professor of Physics and Astronomy at The Johns Hopkins University, Nobel Laureate and the project's leader,is the first author of the research.

Published On : July 12, 2021