The Solar System appeared a second Sun, some planets were thrown away or there was life?

Many recent studies have completely flipped the portrait of the Solar System.

1. The 2nd Sun: Has it lost its connection or is it silently acting as a "goddess of vengeance"?

A study published in The Astrophysical Journal Letters from the Harvard & Smithsonian Center for Astrophysics (CFA - USA) shows that there are strange traces in the Oort Cloud at the edge of the Solar System. The tracks point to a massive object that escaped from the Solar System billions of years ago.

The history of the Solar System is full of unsolved mysteries

Based on models of star formation, the authors believe that they are the Sun's "twins", created in the same star nursery and then mate for long periods of time. Now the "Escape Sun" may have become the "mother" of another planetary system.

Then, another research team led by Steven Stahler from the University of California at Berkeley and astronomer Sarah Sadavoy from the Harvard-Smithsonian Astrophysical Observatory (USA) came up with an even more shocking hypothesis: The Third Sun 2 - which they named Nemesis - still exists quietly in the dark outer Solar System, stirring occasionally and the culprit of the extinction cycle every 27 million years on the Sun!

Nemesis is the name of the "goddess of vengeance" in Greek mythology.

2. The planet was thrown away

Not only the "second sun" may have existed and been thrown away, the Solar System may have lost a planet, according to research from Carnegie Mellon University (USA), published in Icarus. It was a large planet between present-day Saturn and Uranus. The study is based on the anomalies of these two planets' orbits.

A giant planet that has fallen away or is still lurking somewhere?

The reason it was ejected could be due to the excruciating impact of two powerful things: the Kuiper Belt at the edge of the Solar System and the giant Jupiter, which affects most of the other planets in the Solar System.

In addition to this hypothesis, many other studies have also found other 9th planets for the Solar System: maybe the asteroid Psyche is famous as a "failed planet"; a giant planet at the edge of the Solar System, playing with objects there; or possibly Pluto itself, according to NASA's statement.

3. Life in the Solar System is common

Many studies targeting Venus, Mars, Jupiter and even Pluto suggest that they are habitable!

While NASA believes that life on Mars is only fossils billions of years old, it claims Pluto most likely possesses a submarine sea, and Jupiter - which has water vapor in the atmosphere - "possessed a strange life-form".

Venus

In 2021, Venus - the Sun's twin brother - is thought to be the best candidate for current life, different from previous studies that suggested that the greenhouse effect had turned the planet into a giant planet. This ocean becomes the land of the dead.

A study by Dr. Sara Seager from the Massachusetts Institute of Technology and Dr. Clara Sousa-Silva, an astrophysicist from Harvard University (USA) discovered the ghost gas phosphine - which may be the product of life in the atmosphere of Venus. Meanwhile, work led by Professor Rakesh Mogul from California State Polytechnic University (USA) says that the acidity and water activity levels in Venus' sea of ​​clouds are likely within an acceptable range for the planet. with microorganisms existing on the Sun.

Besides, quite a few studies prove that Venus may still be geologically active - something that helps a planet maintain a carbon cycle, stable in temperature and atmospheric elements to support life.