Merely changing the way in which gravity ACTS on normal matter cannot explain this distribution.

仅修正引力对普通物质的作用方式是无法解释这一情形的。

youdao

Thus, dark matter must exist, and it was wrenched apart from normal matter by the force of the collision of the clusters.

因此，暗物质一定存在，而且星云团的碰撞产生的作用力将暗物质同普通物质相分离。

youdao

With these results, scientists concluded that the cosmos is made up of 4% normal matter, 22% dark or invisible matter and 74% dark energy .

因此，天文学家们认为，宇宙的4%由普通物质组成，22%由暗物质组成，剩下的74%是暗能量。

youdao

"These are the same kind of fine matter found in normal air pollution.

VOA: standard.2010.04.16

In fact, previous observations using different techniques had already shown that normal matter was about a fifth of the total.

ECONOMIST: Astronomy

Both theory and previous observations suggest there is more dark energy than dark matter, and more dark matter than normal matter.

ECONOMIST: Astronomy

This means that normal matter collapses more slowly than dark matter, and that when it does so it has a tendency to oscillate, generating a sound wave.

ECONOMIST: Astronomy