2021-10-15

Distant galaxies show us the future of the solar system

By yqqlm yqqlm

Distant galaxies show us the future of the solar system

the Jupiter like gas giant orbits a white dwarf near the center of the Milky Way galaxy. Astronomers say the discovery confirms that planets that travel far enough from their host stars can survive the death and expansion of the stars. Scientists describe the newly discovered solar system as similar to our own solar system. Its findings suggest that Jupiter and Saturn may have survived the sun’s red giant phase

David Bennett, co-author of the study, said that since the earth is closer to the sun than Jupiter, it has no chance to survive. However, he believes that if humans moved to a satellite of Jupiter or Saturn before the earth was destroyed, we would stay in orbit around the sun. However, in that distant future, humans will also not be able to rely on the heat generated by white dwarfs for a long time

the sun is a main sequence star. When its nuclear fuel runs out, it will eventually become a white dwarf. When a star burns all the hydrogen in its core, it will first expand into a red giant, which will destroy planets too close to the star. After the red giant phase, the star will collapse into a white dwarf

a white dwarf is a hot and dense core, usually the size of the earth and carrying half the mass of the sun. White dwarfs have no fuel and cannot burn as brightly as the sun, so they are weak and difficult to find. Astronomers at Keck Observatory observed the target solar system using the laser guide star adaptive optics system and the Observatory’s near-infrared camera. The mass of the discovered white dwarfs is about 60% of that of our sun, while the mass of gaseous giant planets is about 40% higher than that of Jupiter