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SQ Vocab 4
Astrophysics
Question | Answer |
---|---|
Scientists have calculated the temperature of deep space with this device. | Ground-based microwave radio telescope |
The lightest element. | Hydrogen |
The second-lightest element. | Helium |
The third-lightest element. | Lithium |
Clouds of gas/dust in space that reflect and absorb light from stars. | Nebulae |
Collection of small grains of matter; can coalesce into large bodies such as planets, moons and asteroids. | Planetesimal |
All matter and energy originated from this immensely small, hot and dense particle. | Singularity |
An exploding star. | Supernova |
The oldest solid material found on Earth so far. | Zircon crystal |