Could this explain the observed speeds of the stars and galaxies without dark matter playing a role?
这可以不需要借助于暗物质的作用来解释观测到的恒星和星系的速度吗？
Without this data from the cosmic microwave background, we can still learn a whole lot about the Universe, including its age, the presence of dark matter and dark energy.
如果没有这个来自宇宙微波背景的数据，我们仍可以去了解整个宇宙，包括其年龄，暗物质和暗能量的存在等等。
And dark matter doesn't often interact with most other matter, scientists theorize. One idea is that it flies right through the Earth, your house, and your body without bouncing off atoms.
科学家们推理说，暗物质一般不与大多数其他物质作用，他们认为暗物质会直接穿过地球、房屋甚至是人的身体，并不会被原子所弹开。
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