The Methuselah star, also known as HD140283, is a sub-giant star that is estimated to be 14.4 billion years old. This makes it older than the universe, which is thought to be 13.797 billion years old. However, there is a large margin of error, and some studies suggest the star could be as young as 13.6 billion years old. 

The Methuselah star is located 190.1 light-years away and moves at a speed of about 800,000 mph. It has been known to astronomers for over a century and is known for its blueshifted light, which means it is moving towards Earth. 

The Methuselah star’s age has caused some to question the validity of the Big Bang Theory. However, others say that there are times in science when you get a result that you know is wrong, but you don’t know why.

One study suggested that the “Methuselah Star” is older than the Universe itself. The Universe is thought to be 13.797 billion years old, with an uncertainty of ±0.023 billion years. In 2013, a measurement of the “Methuselah Star” suggested that it is 14.45 billion years old — older than the age of the Universe.

The Methuselah star is about 190.1 light-years away from Earth. It’s located in the constellation Libra, near the border of Ophiuchus in the Milky Way Galaxy

In 2013, the Hubble Space Telescope measured the star’s distance using its Fine Guidance Sensors. The measurement was 202.4 ± 0.9 light years

The Methuselah star is one of the oldest known stars, and is generally accepted to be over 14 billion years old. However, some more recent models of its stellar evolution have suggested that the star’s age is closer to 13.7 billion years or 12 billion years. 

The Methuselah star is a low metallicity star, so it likely formed from the remnants of the first generation of stars. This means it would have formed early in the universe

The Methuselah star is a Population II star, which means it’s a cosmic relic from the beginning of the universe. It’s one of the first stars to form from the first stars, which astronomers call Population III stars. 

Population II stars have less oxygen and iron than other stars, like our sun. 

The Methuselah star is also part of a group of stars called Halo Stars, which orbit the center of our galaxy in elliptical paths. By tracing the star’s orbit and velocity, astronomers can learn more about the history of our galaxy and how it grew over time.

The Methuselah star is made up of about 92% hydrogen and 8% helium. However, when expressed in terms of weight, the ratio is about 75% hydrogen to 25% helium. 

The star is also made up of very little iron and has very low levels of heavy elements. This composition indicates that the star must have formed when helium and hydrogen predominated the cosmos and before iron became ubiquitous. 

Astronomers believe that HD 140283 is old because the star has a very low “metallicity”. Metallicity is a measure of the percentage of the chemical makeup of a star consisting of elements other than hydrogen and helium.

The Methuselah star is so old because it has a low metallicity, which means it has very little elements heavier than hydrogen and helium. This indicates that it formed very early in the history of the universe, before most metals were created by successive generations of stars. 

Older stars tend to have fewer heavy elements in them, and younger stars have more. By that measure, HD 140283 has a metallicity 1/250th (0.004) that of the Sun. That’s extremely old, implying a very old age for this star

The oldest thing in the universe is believed to be the cosmic microwave background radiation (CMB). This is the afterglow of the Big Bang, which is thought to have happened 13.8 billion years ago. 

Other old objects in the universe include: 

• GRB 090423 This burst is the oldest known object in the universe, apart from the Methuselah star. Light from the burst took about 13 billion years to reach Earth. 
• Maisie’s galaxy This galaxy is 13 billion years old and is one of the four oldest galaxies ever discovered. 
• HD1 This galaxy is thought to have formed a little over 300 million years after the Big Bang.

According to physicists, the universe began with an infinitely dense, tiny ball of matter that exploded, giving rise to the atoms, molecules, stars, and galaxies we see today. This is known as the Big Bang theory. 

Some models of the Big Bang theory predict that a singularity existed before the Big Bang. The instant after the initial singularity is part of the Planck epoch, the earliest period of time in the history of our universe. 

According to Einstein’s theory of relativity, time only came into being as the primordial singularity expanded toward its current size and shape. 

The first long-lived matter particles of any kind were protons and neutrons, which together make up the atomic nucleus. These came into existence around one ten-thousandth of a second after the Big Bang. 

According to New Scientist, the universe is expanding, but there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across. 

According to Quora, there is no “beyond” our Universe. It occupies all the space-time that, for our purposes, exists.

The Methuselah star, also known as HD 140283, is believed to be the oldest star in the universe, having formed over 14 billion years ago. This makes it older than the universe itself, which is thought to be around 13.797 billion years old

Researchers estimated the star’s age by combining spectral and luminosity information with models of star formation and evolution. They estimated the star’s age to be 14.46 billion years old, with an uncertainty of 0.8 billion years. However, some say that the star could actually be 13.7 billion years old, which is just barely younger than the universe. 

Some say that the star’s age could be explained by errors in our modeling of stars or other aspects of the star, such as its distance

Edwin Hubble is credited with discovering the expansion of the universe in the 1920s. In 1929, he provided the first observational evidence that the universe has a finite age. 

Hubble’s measurements of galaxies showed that the universe is expanding uniformly. This means that the universe has a finite age that can be estimated by mathematically “running the expansion backward”. In 1929, Hubble estimated that the universe was around 2 billion years old. 

The Hubble constant is a measure of the rate at which the universe is expanding. Hubble’s first estimate of the Hubble constant was made in 1929.

Astronomers estimate the age of the universe in two ways: 

• Oldest stars Astronomers measure different parameters of the oldest stars in the universe to calculate the age of the universe. For example, astronomers can estimate the ages of old globular star clusters to be between 11 and 14 billion years old. 
• Expansion rate Astronomers measure the rate of expansion of the universe and extrapolate back to the Big Bang. This method uses the Hubble constant, which describes the expansion rate of the universe. 

In 2001, NASA launched the Wilkinson Microwave Anisotropy Probe (WMAP) to study the early universe. WMAP was able to determine the age of the universe to be about 13.7 billion years old. 

In 2020, scientists announced that the universe is thought to be around 13.8 billion years old. This was determined by reevaluating data from the European Space Agency’s Planck spacecraft and analyzing data from the Atacama Cosmology Telescope (ACT) in Chile.

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