Hot super-Earths do not owe their brightness to molten lava or cooled glass as formerly assumed: scientists

Hot super-Earths do not owe their brightness to molten lava or cooled glass as formerly assumed: scientists

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Science, Geography, Biology, Physics, Chemistry

11th Grade - University

Hard

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The video discusses rocket planets, particularly hot super Earths, which orbit close to their stars and have high reflectivity. New research suggests these planets reflect 40-50% of their star's light, compared to Earth's 30%. Laboratory experiments with basalt and feldspar indicate that lava accounts for only 10% of the light. Researchers speculate that the brightness may be due to metal-rich atmospheres and reflective clouds, rather than molten lava or cold glass.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are hot super Earths and how do they differ from Earth in terms of brightness?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

According to the research, what percentage of light do hot super Earths reflect compared to Earth?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What materials did researchers melt to study the light reflection properties?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How do the reflective properties of hot super Earths challenge previous assumptions about their brightness?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What do researchers speculate about the source of brightness in lava ocean planets?

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