A Zombie Star That Just Won’t Die

The video discusses two astronomical phenomena. First, a star named iPTF14hls, which behaves like a 'zombie star' by exploding multiple times, defying typical supernova behavior. Scientists speculate it might be a pulsation pair instability supernova, a theoretical model not yet observed. Second, the video explores Pluto's unexpectedly cold temperature, attributed to its atmospheric hazes rather than gases. This discovery was made using data from the New Horizons mission and atmospheric modeling, revealing that Pluto's hazes play a significant role in its temperature regulation.

What is unusual about the supernova iPTF14hls compared to typical supernovae?

• It is located within our solar system.

• It has exploded multiple times over decades.

• It is less bright than the sun.

• It has no hydrogen left.

What is a possible explanation for the unusual behavior of iPTF14hls?

• It is a neutron star.

• It is a black hole.

• It is a newly formed star.

• It might be a pulsation pair instability supernova.

Why is Pluto's temperature unexpectedly low?

• It lacks an atmosphere.

• It has a thick layer of ice.

• Its atmosphere is dominated by hazes.

• It is closer to the sun than expected.

What role do hydrocarbons play in Pluto's atmosphere?

• They reflect sunlight, causing brightness.

• They trap heat, making Pluto warmer.

• They absorb and radiate energy, cooling Pluto.

• They create a magnetic field.

How might the study of Pluto's atmosphere help in understanding exoplanets?

• By showing how atmospheres can be invisible.

• By demonstrating the role of gases in temperature regulation.

• By highlighting the importance of hazes in atmospheric temperature.

• By proving that all planets have similar atmospheres.