Have Astronomers Detected Any Earth-Sized Planets Around Normal Stars Yet

question 13

Multiple Choice

Have astronomers detected any Earth-sized planets around normal stars yet?

• A) Yes, the Kepler spacecraft is just starting to find them.
• B) Yes, although the ones detected lie much closer to their stars than we do to ours.
• C) Yes, although the ones detected lie much farther from their stars than we do from ours.
• D) No, we do not have the technology to detect such low-mass planets yet.
• E) No; although we have the technology to detect low-mass planets, we haven't found any others yet.

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Definitions:

Neurogenesis

The process of generating new neurons in the brain, contributing to brain plasticity and learning.

Neurons

Neurons that convey information by sending electrical and chemical signals throughout the body.

Brain Health

Refers to the optimal functioning and well-being of the brain, encompassing aspects such as cognitive function, emotional wellness, and neurological integrity.

Learned Helplessness

A condition in which a person suffers from a sense of powerlessness, arising from a traumatic event or persistent failure to succeed, leading to resignation and apathy.