VOA科学技术2024--Researchers: Desert Moss Could Support Colonies on Mars

（单词翻译）

Scientists have identified a kind of desert moss¹ that could help support possible colonies on Mars, a study by the Chinese Academy of Sciences showed recently.

The moss - Syntrichia Caninervis - was able to survive Mars-like conditions of extreme dryness, very low temperatures and radiation, the research shows. The study appeared recently in the publication The Innovation.

The moss could serve as the "basis for the establishment and maintenance of the ecosystem² by contributing to oxygen production, carbon sequestration, and soil fertility," the study said.

The paper added, "(It) can help drive the atmospheric³, geological, and ecological⁴ processes required for other higher plants and animals" while helping⁵ to create new environments that could support long-term human settlement.

The study shows that the moss could return quickly to health even after losing more than 98 percent of its cellular⁶ water. The plant was able to recover its normal operation seconds after getting water.

The plant can also survive very low temperatures. It can recover or regenerate⁷ after being stored in a freezer at -80 degrees Celsius⁸ for five years. It can survive a month in liquid nitrogen, the researchers found.

Researchers collected the study plants from a desert in the Xinjiang Uygur Autonomous⁹ Region of China. The moss also grows in Tibet, the American state of California, the Middle East and polar areas.

China and the United States have announced a number of space exploration plans in recent years.

Chinese missions include launching a near-Earth asteroid¹⁰ probe Tianwen-2 next year, and Tianwen-3 around 2030 to collect material from Mars and bring it to Earth for study. Last month, a Chinese mission collected materials from the far side of the moon.

The American space agency NASA has developed a 20-year plan for Mars exploration. It is investigating whether the red planet could support human population.

Words in This Story

maintenance - n. the act of keeping property or equipment in good condition by making repairs

contribute - v. to give or supply (something, such as money or time) as a part or share

carbon sequestration - n. any of various methods for capturing and storing carbon dioxide

probe - n. an attempt to explore or learn about some unknown place