Examlex
The Hubble diagram is a way of sorting galaxies by their visual appearance.
Critical-Thinking Skill
A cognitive process that involves analyzing, evaluating, and synthesizing information to make reasoned judgments.
Listening Carefully
The act of attentively and actively engaging in the process of hearing and understanding spoken communication.
Organizing Information
The process of categorizing and structuring data or knowledge in a systematic way to enhance understanding and retrieval.
Guillain-Barré Syndrome
A rare disorder in which your body's immune system attacks your nerves, leading to muscle weakness and sometimes paralysis.
Q18: If you wanted to observe heavy elements
Q33: If an AGN varies its brightness on
Q38: The Drake equation estimates the number of
Q40: Which of these statements about galaxy clusters
Q48: By comparing globular clusters, you find that
Q63: The percentage of hydrogen in the Sun's
Q71: The main-sequence lifetime of a star
Q80: Our galaxy is a typical barred spiral
Q86: As the universe cooled shortly after the
Q91: How do astronomers know that AGNs are