Life in the Cosmos

An organism that thrives in physically or geochemically extreme conditions is named an ...

The Hertzprung–Russell diagram is a plot of ...

The most convincing piece of evidence suggesting that Europa has a subsurface ocean is the

An Object with insufficient mass to sustain nuclear fusion in their cores is a ...

Rocks are found on the surface of another planet which appear to have been formed from the solidification of molten lava. Given this, they are most likely to be classified as ...

LIfe on Mars is most likely to be found: in the atmosphere/ on the surface/ beneath the surface / near the centre ?

What is the approximate lifetime of the Sun (in billions of years)?

The main chemical building blocks of life, C, H, O, and N were formed in ...

The mass of a planet measured using the Doppler shift method could be less than / greater than / either / exaclty its true value

The residual polar caps on Mars are made of --- ice

The total mass of all existing asteroids is 1/--- of that of the Earth

Which of the following stars is the hottest? M7, A0, G6, B4

The range of distances from a star where liquid water can be stable on the surface of a suitable planet is known as the ...

The Sun will end its life by becoming a ...

The K-T boundary separates which two periods in Earth's history?

What temperature is required for the proton-proton cycle to occur?

What is the surface temperature of the Sun in K?

During what period were most of the Moon's craters formed?

To the nearest billion years, how old is the Sun?

The large water erosion features on Mars appear to be --- billion years old