Although the universe is full of surprises that we sometimes cannot imagine, many astronomical objects have already been well mapped and explored.
Today we know that the universe is filled with countless galaxies and stars, which differ in their shape, properties and proportions that make them unique. From many observations, whether cosmic or terrestrial, we have at least a rough idea of what has been happening around us since then nearest planets, via farthest places The solar system, monstrous and devouring everything A monster in the middle of the Milky Way, even the farthest and The most extreme things are presented by the universe itself.
Cefeida RS Puppis. NASA, European Space Agency, Hubble Heritage Team
Within a few decades, we’ve discovered nearly 5,000 Planets outside the solar system revolving around the distant stars, theD to photograph a black holeUncover a number of mysteries extraterrestrial signalsWhether an alien beast that emits energy will be discovered In a billion suns.
A hundred years ago, everything was different, and the visible universe did not extend beyond the Milky Way. However, our entire view of the universe was changed by a single star, which today is called the most important star in the universe. or like that NASA Titled “The Star Who Changed the Universe”.
The most important star in the universe
The discovery of this star, now known as Hubble’s Variable Number 1, or V1 for short, changed astronomers’ view of the universe overnight. At the beginning of the 20th century, most astronomers considered the Milky Way to be the only “space island” and nothing beyond the confines of our galaxy.
Pechetti et al., ArXiv, 2021
Even the Andromeda galaxy, the second most explored galaxy in the universe after the Milky Way, has been referred to as the Nebula, or the Great Nebula in Andromeda.
While we now know that both the Milky Way and Andromeda are spiral galaxies, with the Great Nebula in the Triangle and dozens of smaller satellite galaxies, they form a place group of galaxies, referred to in the early twentieth century as “The Spiral Nebula in the Milky Way”, pointing to futuristic.
You will find in this article after opening
- What were we thinking about the size of the universe less than 100 years ago?
- How did Edwin Hubble discover the star that changed the universe forever?
- How did one observation bring about drastic changes in astronomy at the time?
- What are variable stars?
- How did astronomers react at the time to the discovery of Hubble?
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