Life Beyond Earth
Exoplanets & Habitable Zones
Origin of Life
Extreme Environments
Search for Extraterrestrial Intelligence (SETI)
100

The term for the scientific study of life in the universe beyond Earth

What is astrobiology

100

The term that describes a planet outside of our solar system that orbits a star

What is an exoplanet

100

The molecule that is often considered a precursor to life and has been detected in space and on comets

What is amino acids

100

The type of extremophile that thrives in highly acidic environments, such as sulfuric hot springs

What are acidophiles

100

Program that uses radio telescopes to search for potential signals from extraterrestrial civilizations

What is SETI (Search for Extraterrestrial Intelligence)

200

The type of celestial body that is a prime candidate for harboring extraterrestrial life due to its subsurface ocean

What is an icy moon

200

The mission launched by NASA to search for exoplanets using the transit method

What is the Kepler mission

200

The theory proposing that life on Earth may have originated from organic molecules brought here by comets or meteorites

What is panspermia

200

Extreme environment on Earth, often compared to conditions on the surface of Mars

What is the Atacama Desert

200

The star system where the "Wow! signal" was detected in 1977, a potential candidate for extraterrestrial communication

What is the Chi Sagittarii system

300

A planet in our solar system that has methane in its atmosphere, leading to speculation about the possibility of microbial life

What is Mars

300

The nearest exoplanet to Earth, orbiting Proxima Centauri

What is Proxima B

300

The primordial soup experiment conducted by Stanley Miller and Harold Urey in 1953

What is the Miller-Urey experiment

300

Deep-sea hydrothermal vents where extremophiles thrive in the absence of sunlight

What are black smokers

300

The interstellar object that passed through our solar system in 2017, sparking speculation about its artificial origin

What is 'Oumuamua

400

The concept that suggests life may exist and thrive in extreme environments on Earth and potentially on other celestial bodies

What is Extremophiles

400

The star that is most likely to have habitable exoplanets in its orbit due to their longevity and stability

What is a red dwarf star

400

The process by which simple molecules evolve into more complex ones, ultimately leading to the formation of life

What is chemical evolution

400

Extremophiles that are capable of surviving on extremely high levels of radiation, such as those found near nuclear reactors

What are radiotrophic fungi

400

The hypothetical concept of an engineered structure constructed by an advanced extraterrestrial civilization, such as a Dyson sphere

What is a megastructure

500

The zone around a star where conditions may be right for liquid water to exist on the surface of a planet, making it potentially habitable

What is the habitable zone (Goldilocks zone)

500

The method used to detect exoplanets by observing the slight dimming of a star's light as a planet passes in front of it

What is the transit method

500

The self-replicating molecule that is believed to have been an early precursor to life on Earth

What is RNA (ribonucleic acid)

500

Extremophiles that are capable of surviving in environments with high levels of salt, such as the Dead Sea

What are halophiles

500

This scientist, known for his work in radio astronomy and SETI, co-authored the 1960 paper proposing the search for extraterrestrial intelligence using radio telescopes

Who is Frank Drake