How Do We Know What Happens at the Event Horizon

question 44

Multiple Choice

How do we know what happens at the event horizon of a black hole?

• A)Astronomers have sent spacecraft through the event horizon of a nearby black hole.
• B)Astronomers have detected X- rays from accretion disks around black holes.
• C)Astronomers have analyzed the light from matter within the event horizon of many black holes.
• D)Physicists have created miniature black holes in the lab.
• E)We don't know for sure; we only know what to expect based on the predictions of general relativity.

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Definitions:

Root Hairs

Thin, hair-like extensions from a root's epidermis that increase surface area for water and nutrient absorption.

Reproductive Structure

Any part of a plant or animal designed specifically for sexual or asexual reproduction, such as flowers or reproductive organs.

Shoot System

Aboveground portion of a plant consisting of the stem, leaves, and flowers.