Shared Flashcard Set

Details

Title

chapter 16

Description

chapter 16 cosmic perspective

Total Cards

Subject

Astronomy

Level

Undergraduate 1

Created

12/18/2013

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Additional Astronomy Flashcards

Term

Define: Dark matter

Definition

a mass that emits no detectable radiation,

Term

evidence of dark matter

Definition

its gravitational effects stars and galaxies.

Term

define: dark energy

Definition

the unseen influence that may be causing the expansion of the universe to accelerate with time.

Term

Three possible fates of the universe

Definition

collapse to a Big Crunch, expand ever more slowly to a Big Chill, or expand ever faster to a Big Rip

Term

what is dark matter?

Definition

weakly interacting massive particles, like neutrinos but larger.