2021-11-02

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?

By yqqlm yqqlm

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e2fc 23f8f70ef01eb098e478d5ff4cd777e3 - Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?

1. Ceres: as far as asteroids are concerned, Ceres is large, It accounts for a quarter of the total mass of asteroids in the asteroid belt between Mars and Jupiter. In fact, Ceres is now classified as a dwarf planet. In 2015, the “dawn” spacecraft arrived at the star. At that time, the spacecraft photographed the strange structure of the spherical object. After investigation, Ceres still has water resources. Scientists speculate that it may have mysterious life forms

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?

2. 2014 jo25: Apollo asteroid 2014 jo25 is a space rock body with strange shape. It rotates about every 4.5 hours. In April 2017, Arecibo Observatory found it in low earth orbit, At that time, it was about 1 million kilometers away from the earth, the closest to the earth in 400 years. These observations provide a unique perspective on space rocks: they look like statues in still images, but they actually run in space at an extremely fast speed and are always rotating

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?(1)

3. Vesta: if people look at it roughly, they will think Vesta is a satellite. In fact, it is the second largest star in the asteroid belt after Ceres, and the dawn probe has also reached the star, It is different from other asteroids in that it has a crust, mantle and core. Scientists believe that this is because it is an older star

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?(2)

4. Eros: Eros is the first near Earth Asteroid discovered by scientists. It accidentally appeared in a photo in 1898. It is also the first asteroid photographed by an orbiter. One century after it was discovered, that is, in 1998, The near probe made the first “three consecutive shots” of Eros. Then, in 2001, the probe also landed on the surface of Eros, which is also the first time that a human probe landed on the surface of an asteroid. Before humans used radar to observe cosmic objects, astronomers used Eros to calculate astronomical units as a measurement standard of the solar system

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?(3)

5. Benu asteroid: the Osiris Rex mission makes Benu asteroid one of the focuses of scientists. During the seven-year survey mission, the Osiris Rex probe runs around Benu asteroid and samples rocks from the star, And began to return to earth. If this mission is successfully completed, it will be the largest number of extraterrestrial samples transported to the earth since the Apollo mission. These samples will certainly reveal important clues to the history of the solar system and even the mystery of the origin of life

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?(4)

6. IDA: IDA is the first asteroid with a satellite discovered so far. A small space rock named “dactyl” runs around it. Scientists believe that dactyl and Ida are “one”, In ancient times, two larger stars collided and finally the debris formed these two stars. They are one of the members of the “koronis asteroid family” in the main asteroid belt between Mars and Jupiter

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?(5)

7. Gault: in 2019, the Hubble Space Telescope captured a shocking picture: an asteroid with a diameter of 4km was destroyed, and its wake ejected a huge dust stream. The asteroid was named “Gault”, Although it may have been destroyed 100 million years ago, its mass loss accelerated with the passage of time. At present, the asteroid has not disappeared. We are lucky to observe it through the Hubble Space Telescope

Eight mysterious asteroids in the solar system: Ceres has water and may give birth to life?(6)

8. Comet 67p: it is not a real asteroid. In 2014, the European Space Agency’s “philai” probe landed on the surface of comet 67p. The “philai” is part of the “Rosetta” probe. The captured images show that, The comet is surrounded by dust and debris, making it look more like a snow covered mountain top