Discover the astonishment of the planet's formation

Based on the support of the ALMA telescope, world astronomers have just announced a new discovery that could change every theory so far about the formation of planets, including the Left land.

In the solar system, in addition to Earth, there are 3 planets including many other rocky stars such as Mercury, Venus and Mars. These planets all have a hard surface with heavy metal cores. Meanwhile, other very large planets, such as Jupiter or Saturn, are essentially giant gas spheres.

The new finding suggests that in the universe the planets with a rocky surface may be more popular than people once thought. The research has just been presented in the November 30 issue of the Astrophysical Journal of Letters .

A dwarf star in the universe

By using the world's most modern telescope ALMA placed on a 5,000m high mountain in Chile, astronomers closely watched a brown dwarf named ISO-Oph 102 . This is a star-like object but due to its small size, it cannot shine.

According to a long-recognized theory, planets with a rocky surface are made up of random collisions of microscopic debris in the disk of physical dust that exists around a star. These debris, like soot, stick together and grow.

Scientists believe that the appearance of dwarfs has a different structure. They believed that the debris could not stick together because the disks were very thin and sparse. In addition, the debris often moves at too high a speed so it cannot stick together before colliding.

But with the disk of material dust around ISO-Oph 102 dwarfs, astronomers found materials that, at least according to them, are quite large. These are particles a few millimeters in size.

'Hard dust particles of that size should not be able to form in low temperature areas outside the dwarf disk of dwarfs. But the truth seems that they are still forming , "said Luca Ricci, a scientist from the California Institute of Technology and a group of astronomers from the US, Europe and Chile.

'We are not sure whether a planet with a rocky surface will be able to form there, or have formed, but we are seeing the first steps. So we will have to change our assumptions about the necessary conditions for the solid blocks to grow up, ' Ricci assured.