How Many Stars are in the Universe?

Cosmic stars originate from the Big Bang 15 billion years ago, and consist of billions of galaxies, stars, and planets.

Cosmic star

But in reality, the billions of stars that make up the vast universe are numerous

Before the birth of the universe, there was no time, no space, and no matter or energy. About 15 billion years ago, an infinitely small spot exploded among these four "empties". From this moment in time and space, matter and

For most of human history, the question of creation was always left to God to solve. Where did the universe originate? Where is the end? How does life come about? How did humans appear? Many religions can give a comprehensive answer to these questions. As for where God comes from, this question should not be asked.

It is only in recent centuries that people have begun to think of the origin of the world beyond God's perspective in transcending religion. In this way, there is a major

Inferred

The second law expresses the beginning of the universe, but this important corollary was ignored by scientists in the 19th century. It only later proved that it was a model of the Big Bang. The model was proposed based on astronomical observations in the early 20th century.

In the 1920s, astronomer Edwin Hubble noticed that the light emitted by galaxies at different distances was slightly different in color. Far galaxy light is redder than near galaxy, ie

When a sun-heavy star runs out of its nuclear fuel, it will take off most of the outer layers, leaving only a hot nucleus called a white dwarf. Scientists have speculated that a white dwarf with a 50-kilometer-thick shell has carbon and oxygen crystals at the bottom, like diamonds. In 2004, scientists discovered that a white dwarf star "BPM 37093" near Sagittarius was composed of 5 trillion billion (5 x 10 30th power) pounds of carbon

A star cluster is made up of many stars formed during the same period. Some star clusters have dozens of stars, others have millions of stars. Some star clusters are visible to the naked eye, such as the well-known Pleiades cluster in the Taurus constellation. It is a mystery why some stars formed in the same area can be combined to form star clusters.

It used to be thought that stars might not exist alone. But now, astronomers predict that 85% of the stars in the Milky Way galaxy live in clusters of stars. Of all the stars, more than half are double star systems, linked to each other by mutual gravitation, and each star rotates around the center of mass. When three or more stars come together, they are called multiple galaxies. In 2005, astronomers provided evidence that the first planet orbited a double galaxy. This may be a single star waiting for the third party.

[Mysterious explosion]

The star s catastrophic explosion erupted into a strong shock wave, and the outer radiation speed reached 35 million kilometers per hour. The end of life for some stars can be a spectacular astronomical event. When a supernova 8 times the mass of the sun is burned out, the gravitational internal force will tear the star's internal organs apart. These explosions also caused high-energy light and matter to be ejected into space. Since the discovery of supernovae by Johannes Kepler in 1604, astronomers have never seen supernovas in our galaxy.

[Sun flare]

The atmosphere of the sun-the temperature of the corona can reach 2 million degrees Celsius, and can secretly emit high-energy particles at the speed of approximately the speed of light. These charged particles, called solar flares, can cause magnetic fields to shift toward the earth and interfere with ground communications, satellite technology, and signals from electronic devices and even cell phones. The largest solar flares can release energy equivalent to millions of hydrogen bombs, which, if used, would be sufficient for the United States for 100,000 years. Astronomers have only just begun to understand how the Sun's interior works and have targets to predict these fiery flares.

[Horrible black hole]

The density of black holes is large enough that nothing can escape the control of its gravity. Once there is no way to escape the black hole boundary, not even light can escape. Astronomers now have evidence of the existence of stellar and super-large black holes. Stellar black holes are formed by the explosion of large stars, and super-large black holes are millions of solar materials.