![]() ![]() ![]() The world has experienced rapid urbanization over the last century. Ranked: The World’s Largest Cities By Population ![]() Another well-known scientist was Edwin Hubble, whose findings of galaxies moving away from Earth is considered to be the first observation of the universe expanding. Most people are familiar with Albert Einstein and his theory of relativity, which became a cornerstone of both physics and astronomy. Humanity has been interested in space for thousands of years, and many scientists and researchers have dedicated their lives to furthering our collective knowledge about space and the universe. Why is it called the “Observable” Universe? It also highlights some newly deployed spacecraft, including the James Webb Space Telescope (JWST), which is NASA’s latest infrared telescope, and the Tiangong Space Station, which was made by China and launched in April 2021. Scientists believe this newly-discovered galaxy was formed just 330 million years after the Big Bang, or roughly 8.4 billion years before Earth. Cosmic microwave background-radiation leftover from the Big Bangįeatured are some recently discovered objects, such as the most distant known galaxy to date, HD1. ![]()
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