The growing demand for space exploration has increased the likelihood of alien species invading. Earth And scientists argued in a new paper about Earth-based organisms invading other planets.
Researchers point to human records of moving species to new environments on Earth. Invasive Harm to native species. They say that such behavior suggests that the same could happen with the lives of aliens from another planet that is contaminating the Earth. Bioscience..
Anthony Ricciardi, a professor of invasion biology at McGill University in Montreal, wrote in an email to Live Science: “Our quest for life beyond the world can bring great discoveries in the not too distant future. It’s a sexual and exciting attempt. ” .. “But in the face of an increase in space missions, including those aimed at returning samples to Earth, it is important to reduce the risk of biological contamination in both directions.”
Ricciardi and his colleagues use this paper to call for more collaboration between astrobiologists looking for extraterrestrial life and invading biologists studying invading species on Earth. .. “We can only infer the types of organisms that astrobiologists may encounter if they find life,” says Ricciardi. “The most plausible organisms are microorganisms, which are probably similar. Bacteria.. ”
Scientists believe that the risk of interplanetary contamination is very low. This is because the harsh conditions of outer space make it difficult for potential hitchhiking creatures to get on the outside of human spacecraft and survive. However, according to Ritchardi, attention should be paid to interplanetary contamination based on the negative effects of invasive species on the Earth.
Humans have damaged ecosystems around the world by allowing organisms to invade new environments that are unreachable by nature.For example, fungi from South America Austropuccinia psidii Introduced to Australia in an unknown situation, it hijacks Australian eucalyptus trees, stunts their growth and sometimes kills them.
Researchers have pointed out that geographically isolated and evolving island ecosystems, such as islands and countries like Australia, are particularly vulnerable to invasive species. Native wildlife in these places has not evolved adaptations to combat such invaders. “Biological invasion often has a devastating impact on plants and animals in these systems,” says Ricciardi. “We argue that planets and satellites that may contain life should be treated as if they were island systems.”
As evidence of interplanetary contamination, researchers cited the colliding Israeli Beresheet spacecraft. Month Carrying thousands of luggage in 2019 Tardigrade, A microscopic animal that can withstand extreme conditions, including the vacuum of the universe, Live Science previously reported..2021 study published in the journal Astrobiology The creatures probably could not survive the effects of the lunar collision, but concluded that the incident indicates a possible biological outflow.
According to Ricciardi, space agencies such as NASA have long been aware of the potential risks of biological pollution, and planetary protection policies have been in place since the 1960s. “But unprecedented risks are posed by a new era of space exploration aimed at targeting areas most likely to contain life,” Richard said. According to the paper, this includes the rise of private space exploration companies such as SpaceX, which makes space more accessible. SpaceX, for example, aims to travel to Mars and beyond. SpaceX Starship program.
Researchers suggest increasing biosecurity protocols related to space travel, focusing on early detection of potential biological pollutants, and planning to respond quickly to such detections. I am.
Planets and satellites have always exchanged matter through meteorites, but human space exploration can accelerate pollution, a space biologist at the University of Applied Sciences and Arts in Lucerne, Switzerland, who was not involved in this paper. , Jennifer Wasworth said.
According to Wadsworth, this new paper is an “excellent overview” of the current ongoing need for strict and up-to-date planetary protection regulations. One of the big problems is that the current planetary protection guidelines are not mandatory, Wadsworth told Live Science.
“The line between exploration and protection is thin,” Wadsworth said. “One should not be abandoned at the expense of the other, but both need to be considered carefully, and compliance is of utmost importance.”
Originally published in Live Science.
Scientists warn that alien creatures can board our spacecraft and pollute the Earth
Source link Scientists warn that alien creatures can board our spacecraft and pollute the Earth