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In the near future, an uncrewed space probe returns from Mars to Earth's orbit with soil samples potentially containing evidence of extraterrestrial life.The probe is collected by the International Space Station, where exobiologist Hugh Derry revives a dormant cell that quickly grows into a multi-celled organism; a group of schoolchildren vote to name the organism "Calvin".
Earth is the only place in the universe known to harbor life, where it exists in myriad environments. [8] [9] The origin of life on Earth was at least 3.5 billion years ago, possibly as early as 3.8-4.1 billion years ago. [2] [3] [4] Since its emergence, life has persisted in several geological environments.
The oldest dated rocks formed on Earth, as an aggregate of minerals that have not been subsequently broken down by erosion or melted, are more than 4 billion years old, formed during the Hadean Eon of Earth's geological history, and mark the start of the Archean Eon, which is defined to start with the formation of the oldest intact rocks on Earth.
Samples of organic matter returned from the asteroid Bennu support the theory that asteroids could have brought the building blocks of life to Earth. Scientists find a 'next step on a pathway to ...
In 2000, near Fukang, China, a Chinese dealer obtained a mass from Xinjiang Province, China, with a weight of 1,003 kilograms (2,211 lb).He removed about 20 kilograms (44 lb) from the main mass, and in February 2005, the meteorite was taken to the Tucson Gem and Mineral Show, where it was seen by Dr. Dante Lauretta, a professor of Planetary Science and Cosmochemistry at the University of Arizona.
The 90-year-old actor blasted off from west Texas to make history.
At 90 years old, the “Star Trek” actor entered space aboard Jeff Bezos’ Blue Origin space shuttle on Wednesday morning, becoming the oldest person in history to boldly go where no man has ...
Apollo 14 astronauts Edgar Mitchell and Alan Shepard examine Big Bertha during a news conference at the Lunar Receiving Laboratory, Johnson Space Center. Lunar Sample 14321, better known as "Big Bertha", is a lunar sample containing an embedded Earth-origin meteorite collected on the 1971 Apollo 14 mission. It was found in the Fra Mauro region ...