NASA | Zombie Fomalhaut b: Study of Hubble Data Revives a 'Dead' Exoplanet

Fomalhaut B, an exoplanet orbiting the star Fomalhaut, was initially observed in visible light and claimed as the first of its kind. However, its planetary status was questioned due to the failure to detect its heat. Recent analyses of Hubble images from 2004 and 2006 have reinstated Fomalhaut B as a planet, suggesting it is smaller than previously thought. The planet's movement aligns with the properties of the surrounding ring, indicating its presence. Further observations are expected to provide more insights.

What was the initial claim about Fomalhaut B?

• It was the largest exoplanet discovered.

• It was the first exoplanet directly observed in visible light.

• It was the first exoplanet to be detected by sound waves.

• It was the first exoplanet observed in infrared light.

Why was Fomalhaut B's status as a planet questioned?

• Because its heat was not detected.

• Because it was not visible in ultraviolet light.

• Because it was moving too fast.

• Because it was too far from its star.

What did the new analysis of images from 2004 and 2006 suggest about Fomalhaut B?

• It is a rare type of exoplanet.

• It is not moving at all.

• It is a common type of exoplanet.

• It is larger than previously thought.

What does the failure to detect Fomalhaut B in the infrared suggest?

• The planet is made of gas.

• The planet is moving away from its star.

• The planet is smaller than originally thought.

• The planet is larger than expected.

What is the expected mass of Fomalhaut B compared to Jupiter?

• Equal to Jupiter's mass.

• Half of Jupiter's mass.

• More than twice Jupiter's mass.

• Less than twice Jupiter's mass.