What happened in just one second🥵 #earth #short

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the universe expands at a rate of 73.3 kilometers per second (km/s) for every megaparsec (Mpc) from Earth, which is a distance of 3.3 million light years. The rate at which the universe expands is called the Hubble constant.
Here are some other estimates for the Hubble constant:
67.4 km/s/Mpc: This estimate comes from observations of the cosmic microwave background by the European Planck space observatory.
500 km/s/Mpc: This was Hubble's estimate in 1929.
100 km/s/Mpc: This more accurate estimate was made in 1960.
72 km/s/Mpc: This estimate was made by astronomers using the Hubble Space Telescope in 2001.
The Hubble constant is expressed in units of km/s/Mpc. A megaparsec is a unit of distance that is equal to 3.26 million light years.
The universe is expanding, but it's not expanding into anything because it is everything.

BrajeshKumar-uyso
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Scientists predict the Sun is a little less than halfway through its lifetime and will last another 5 billion years or so before it becomes a white dwarf.

BrajeshKumar-uyso
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But in about 5 billion years, the sun will run out of hydrogen.

BrajeshKumar-uyso
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