Panspermia is the hypothesis that life can survive the transfer between planetary bodies as a secondary path for life to get started on plan
Panspermia is the hypothesis that life can survive the transfer between planetary bodies as a secondary path for life to get started on planets throughout a solar system. The discovery of extraterrestrial life on asteroids or within meteorites would have profound implications for understanding the origins and distribution of life in the universe.
Reports of microorganisms found in chondritic meteorites have long fueled debates about extraterrestrial life reaching Earth and possibly as an origin of life here. While studies have concluded these microbial signatures are just terrestrial contaminants, arguments for them being extraterrestrial travelers have continued.
Ryugu Asteroid Sample Colonized by Earth’s Microorganisms Despite Extreme Precautions
It seems Earth’s tiniest inhabitants have once again proven their uncanny ability to adapt and thrive, even in conditions that would make the hardiest astronaut squirm. Recent research has uncovered that a sample from asteroid Ryugu, meticulously protected from contamination during its return journey to Earth, became a new home for terrestrial microbes in record time. This discovery not only…
After a six-year journey, a plucky spacecraft called Hayabusa2 zinged back into Earth's atmosphere in late 2020 and landed deep in the Austr
After a six-year journey, a plucky spacecraft called Hayabusa2 zinged back into Earth's atmosphere in late 2020 and landed deep in the Australian outback. When researchers from the Japanese space agency JAXA opened it, they found its precious payload sealed and intact: a handful of dirt that Hayabusa2 managed to scoop off the surface of a speeding asteroid.
Scientists have now begun to announce the first results from the analysis of this extraordinary sample. What they found suggests that this asteroid is a piece of the same stuff that coalesced into our sun four-and-a-half billion years ago.
"We previously only had a handful of these rocks to study, and all of them were meteorites that fell to Earth and were stored in museums for decades to centuries, which changed their compositions," said geochemist Nicolas Dauphas, one of the three University of Chicago researchers who worked with a Japan-led international team of scientists to analyze the fragments. "Having pristine samples from outer space is simply incredible. They are witnesses from parts of the solar system that we have not otherwise explored."
'It's spectacular'
In 2018, Hayabusa2 landed atop a moving asteroid named Ryugu and collected particles from above and below its surface. After spending a year and a half orbiting the asteroid, it returned to Earth with a sealed capsule containing about five grams of dust and rock. Scientists around the world have been eagerly anticipating the unique sample—one that could help redefine our understanding of how planets evolve and how our solar system formed.
Scientists are particularly excited because these particles would never have reached Earth without the protective barrier of a spacecraft.
"Usually, all we get to study of asteroids is the pieces that are big enough to make it to the ground as meteorites," said UChicago geochemist Andrew M. Davis, another member of the analysis team. "If you took this handful and dropped it in the atmosphere, it would burn up. You would lose it, and a lot of evidence about the history of this asteroid would go with it.
"We really haven't had a sample like this before. It's spectacular."
Scientists Confirm Returned Asteroid Probe Contains Soil Sample
Space Technology is discovering loads and loads of undiscovered facets of our universe. Humanity has used space science and satellite technology to understand many events like a black hole, the big bang, etc. Now, humans have achieved one more feat in their quest to understand the space related to asteroids. The Hayabusa2 mission has successfully delivered the asteroid samples from the Ryugu asteroid. JAXA (Japanese Space Agency) has confirmed black soil samples present inside a capsule that Hayabusa2 brought back from a distant asteroid.
The probe was due to fire a pellet into the surface of the asteroid to try to capture dust
A Japanese spacecraft has successfully touched down on a speeding asteroid 300 million kilometres from the Earth as it attempts an audacious manoeuvre to collect samples and bring them back for scientists to study. The Hayabusa 2 probe touched down on the asteroid Ryugu at around 11:30pm GMT on Thursday. Data from the probe showed changes in speed and direction, indicating it had reached the asteroid’s surface, according to officials from the Japan Aerospace Exploration Agency (JAXA). A live webcast of the control room showed dozens of JAXA staff members nervously monitoring data ahead of the touchdown before exploding into applause after receiving a signal from Hayabusa2 that it had landed.
