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How much do you know about aliens or extraterrestrial life? Test your knowledge of life in verse two with the quiz below.
- What is the name of the study of extraterrestrial life in science?
a) Astrology
b) Astrobiology
c) Cosmology
d) Exobiology
Ans. b
Explanation: Astrobiology is a scientific field within the life and environmental sciences that studies the origin, early evolution, distribution and future of life in the universe by investigating its deterministic conditions and contingent events.
2. Which celestial body in our solar system is considered one of the best candidates for potential microbial life?
a) Mars
b) Venus
c) Jupiter
d) Saturn
Ans. And
Explanation: According to Arxiv, Europa, Mars and Enceladus have the greatest potential to facilitate microbial survival.
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3. What is the main goal of the search for extraterrestrial intelligence (SETI)?
a) Alien craft
b) Microbial life on Mars
c) Intelligent signals from space
d) Cosmic radiation
Ans. c
Explanation: ATA is particularly suitable for the Search for Extraterrestrial Intelligence (SETI) which detects signals related to technology from an extraterrestrial civilization.
4. What was the name of the mission that discovered Enceladus, Saturn’s moon, to have liquid water?
a) Voyager
b) Hubble
c) Cassini
d) Curiosity
Ans. c
Explanation: NASA states: “The discovery of Enceladus’ global ocean, ice jets and their role in the formation of Saturn’s E-ring is one of the major discoveries of the Cassini mission.”
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5. What well-known equation is used to calculate the approximate number of technologically advanced civilizations in our galaxy?
a) Drake equation
b) Fermi’s equation
c) Einstein’s equation
d) Hawking equation
Ans. And
Explanation: The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy.
6. What harsh environment on Earth has been used as a model for exploring the possibility of life elsewhere in the universe?
a) Rainforests
b) Deserts
c) Hydrothermal springs
d) Glaciers
Ans. c
Explanation: Hydrothermal vents are the result of seepage of seawater through cracks in the oceanic crust near spreading centers or subduction zones.
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7. Which spacecraft successfully landed on Titan, Saturn’s largest moon, and delivered information about the possibility of life there?
a) Voyager 2
b) Huygens
c) Curiosity
d) New horizons
Ans. b
Explanation: The Huygens probe descended into the atmosphere of Titan, Saturn’s largest moon, in 2005. It provided a detailed study of Titan’s atmosphere during its 2.5-hour descent to the surface.
8. What is the name of the area around a star that is considered to provide suitable conditions for the existence of liquid water and life?
a) Goldilocks zone
b) Twilight zone
c) Green zone
d) Danger zone
Ans. And
Explanation: The habitable zone is the region around a star where an orbiting planet has liquid water and, therefore, can possibly support life.
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9. Which of the following radio signals was known to be captured by SETI and is often mentioned as extraterrestrial in origin?
a) Arecibo message
b) Hubble transmission
c) Voyager’s signal
d) Kepler’s lighthouse
Ans. And
Explanation: The message consists of 1679 bits, arranged in 73 lines with 23 characters per line (both are prime numbers and can help aliens decode the message).
10. Which species of extremophiles have attracted the most attention in astrobiology because of their ability to survive in harsh conditions?
a) Extinct organisms
b) Microbes
c) Dinosaurs
d) Primates
Ans. b
Explanation: Extremophiles are a group of microorganisms that belong to all three domains of life (Archaea, Bacteria and Eukarya) and are found on Earth in habitats that are considered extreme from an anthropocentric point of view.
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Source: newstars.edu.vn