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However, as the Sun grows gradually hotter (over millions of years), Earth may become too hot for life as early as one billion years from now. [213] [214] [215] 1.3 billion Various It is estimated that all eukaryotic life will die out due to carbon dioxide starvation. Only prokaryotes will remain. [212] 7.59 billion David Powell
The Sun reaches the top of the red-giant branch of the Hertzsprung–Russell diagram, achieving its maximum radius of 256 times the present-day value. [118] In the process, Mercury, Venus and Earth are likely destroyed. [114] 8 billion The Sun becomes a carbon–oxygen white dwarf with about 54.05% of its present mass.
The crew of Soyuz 11 died after undocking from space station Salyut 1 after a three-week stay. A cabin vent valve construction defect caused it to open at service module separation. The recovery team found the crew dead. These three are, as of 2025, the only human fatalities in space (above 100 kilometers (330,000 ft)). [4] [5]
The SpaceX and Tesla pioneer has warned that travel to other planets was necessary as Earth would be engulfed by the Sun. Elon Musk says humans must leave Earth "because sun will engulf our planet ...
If Earth is not ejected during a stellar encounter, then its orbit will decay via gravitational radiation until it collides with the Sun in 10 20 (100 quintillion) years. [110] If proton decay can occur and Earth is ejected to intergalactic space, then it will last around 10 38 (100 undecillion) years before evaporating into radiation. [111]
Then, Earth would be devastated by a series of magnitude 9.8 earthquakes, Earth's magnetic pole would shift by 30 degrees, the United States would be split in half, and Barack Obama would be elected president for an unconstitutional third term. [46] He predicted that the seven-year Great Tribulation would begin on October 15. [47]
This future history and the timeline below assume the continued expansion of the universe. If space in the universe begins to contract, subsequent events in the timeline may not occur because the Big Crunch, the collapse of the universe into a hot, dense state similar to that after the Big Bang, will prevail. [14] [15]
China tends to conduct its work in space with more secrecy than other countries’ space agencies, suchas Nasa. The motorised rover Zhurong, named after a mythical Chinese god of fire, was ...