Asteroid sample Extracted by NASA Scientists reported on Wednesday that they not only hold primitive buildings, but also have the salty relics of the ancient water world.
The survey results are provided The most powerful evidence Xiaoxing may have grown the seeds of life on the earth, and these ingredients have almost fused with water from the beginning.
Tim McCoy, one of the main research authors, said: "This is an indispensable environment for steps from elements to life."
NASA Osiris-Rex Aerospace Returns 122 grams (4 ounces) of dust and cobblestone from the nearby small planet Bennu, and delivered Sample tank Arrived in the Utah Desert in 2023, and then poured out after another space rock. It is still the largest cosmic hug from the moon. There are fewer materials for the two asteroid samples before Japan.
A small amount of Bennu's precious black grain-the formed of the solar system 4.5 billion years ago-was given to two independent research teams. Their research appeared in the natural and natural astronomy of the journals. However, to cancel sodium -rich minerals and confirm the existence of amino acids, there are many confirmation in the form of ammonia or even part of the genetic password.
If some delicate salt found in the dry lakes of the Mohawan Desert in California and the Sahara Desert in Africa, if it exists in meteorites, it will be deprived.
The Yasuhito Sekine Institute of Tokyo Institute of Sciences does not participate in these studies. He said: "Only by analyzing the samples collected directly from the planets, and then the sample collected from a small planet before you can find it."
The meteorite curator of the National Natural History Museum, McComi, said that the composition of life is combined with the environment of sodium -rich saline or saline, "this is indeed a way of life." "These processes may occur earlier and than We used to be much widespread. "
NASA's Daniel Glavin said that one of the biggest surprises was relatively high nitrogen including ammonia. Although all organic molecules found in Bennu samples have been identified in meteorites before, Glavin said that all organic molecules of Bennu are effective- "Actually it is a real alien organic substance formed in the space, not from the from from The result of the pollution of the earth. "
Bennu (one-third of the rubble (one kilometer, one kilometer) of one-third of the rubble-originally part of a larger asteroid, was hit by other space rocks. The latest results show that this mother has a wide range of underground underground underground underground. The lake and even the ocean network, and the water evaporated, leaving a salty clue.
Dante Lauretta, the University of Arizona, said sixty laboratorys around the world are analyzing part of Bennu.
Most of the $ 1 billion mission cache has listed future analysis. Scientists need to conduct more tests to better understand Bennu samples, as well as more asteroid and comet sample returns. China plans to launch asteroid samples to return tasks this year.
Many people are pushing a task to collect rocks and dirt from the potential water inlet dwarf planets with major asteroids. Jupiter's moon Europa and Saturn's moon potatoes also greet the seductive water world. At the same time, NASA has core samples waiting for pickups on Mars, but their delivery continues, and the dock companies bring them here as soon as possible.
"Are we alone?" McCoy said. "This is one of the questions we want to answer."