Question
Download Solution PDFWho among the following discovered the concept of expanding universe?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Edwin Hubble.
Key Points
- The American astronomer Edwin Hubble made the observations in 1925 and was the first to prove that the universe is expanding.
- He proved that there is a direct relationship between the speeds of distant galaxies and their distances from Earth. This is now known as Hubble's Law.
- The Hubble Space Telescope was named after him, and the single number that describes the rate of the cosmic expansion, relating the apparent recession velocities of external galaxies to their distance, is called the Hubble Constant.
Additional Information
- Carl Edward Sagan
- Carl Edward Sagan was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences.
- Tycho Brahe
- Tycho Brahe was a Danish astronomer, known for his accurate and comprehensive astronomical observations.
Last updated on Jun 17, 2025
-> The SSC has now postponed the SSC CPO Recruitment 2025 on 16th June 2025. As per the notice, the detailed notification will be released in due course.
-> The Application Dates will be rescheduled in the notification.
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