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2 godz. temu · Instead, when it runs out of hydrogen in the core in approximately 5 billion years, core hydrogen fusion will stop, and there will be nothing to prevent the core from contracting. ... Careful observations of the 1769 transit of Venus allowed astronomers to calculate the average Earth–Sun distance as 93,726,900 miles (150,838,800 km), only 0.8 ...
1 dzień temu · It is the most populous city in the Inland Empire and in Riverside County, and is about 50 miles (80 km) southeast of downtown Los Angeles. It is also part of the Greater Los Angeles area. Riverside is the 59th-most-populous city in the United States and the 12th-most-populous city in California. As of the 2020 census, it had a population of ...
