Planetary new standard! NASA experts are ready to redefine planets

Has not yet developed, but there are scientists called for the development of new standards.

NASA experts have called on academics to review the definition of planets, that the moon is like Jupiter and Saturn's satellites, with the characteristics of the planet, should be redefined as a planet.

If the International Astronomical Union to accept their argument, not only Pluto can return to the list of planets, more than 100 satellites in the solar system is also expected to upgrade to do the planets.

NASA "new vision" Pluto Quest Quest Commander Stern and five colleagues pointed out that the public is often preconceived in the word planets, not interested in other non-planets.

In order to meet the more rigorous scientific definition and enhance public awareness, they propose to redefine the planets within the framework of geophysics, that is, to emphasize the intrinsic physical properties of the stars, rather than the external surround characteristics.

According to the report, under the new standard, the stars around other planets can also be regarded as a planet, the earth and the moon will be a double planetary system. If the stars are gravitational enough to make themselves formed from mixed stones, they should also be regarded as planets.