Assertion: dark matter's effect | /r/CreatedBy | dark matter
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Source sentences:
text: K-essence fields have been advanced by Paul Steinhardt at Princeton University and others as an explanation for dark energy, but Scherrer is the first to point out that one simple type of k-essence field can also produce the effects attributed to dark matter.
text: One possibility, considered unlikely by most astrophysicists, is that a modification of the theory of gravity can explain the effect attributed to dark matter.
text: Swiss astrophysicist André Maeder, author of the new study, has proposed that the mysterious effects attributed to dark matter could have another explanation.