暗物质

• Models used to assume that as dark matter clumps , ordinary matter just follows along
  过去，这个模型假设，当暗物质聚集时，普通物质会跟著聚集。
• But the team says the crash was violent enough to break dark matter away from " normal " matter
  但是研究组说碰撞的破坏力足以使暗物质变成普通的物质。
• They say the observations can not be explained by theories of gravity that remove the need for dark matter
  他们说观测不能用重力理论解释暗物质需要移动。
• They say the observations cannot be explained by theories of gravity that remove the need for dark matter
  他们说这种现象不能用暗物质无引力的重力理论来解释。
• On the other hand , dark matter is omnipresent in galaxies , but we know almost nothing about its nature
  另一方面，星系中有很多暗物质，我们并不知道他们是什么。
• 1 the other was announcement earlier in the week that scientists found direct evidence for dark matter
  本周初公布了另一条消息:科学家们发现了暗物质的直接迹象。
• 1 the other was announcement earlier in the week that scientists have found direct evidence for dark matter
  另一项发表于本周初称科学家已经找到暗物质的直接证据。
• Telescopes , the researchers watched two giant gas clouds in outer space collide over a 100 - hour period
  一队美国科学家在观察两团气云碰撞时发现了暗物质存在的证据。
• Others posited that dark matter was the culprit : it might exert a gravitational or drag force
  另有些人则断定暗物质才是惹祸的元凶：它可能会对太空船施加重力或阻力。
• They say the observations cannot be explained by theories of gravity that remove the need for dark matter
  他们说这些观察不能够通过重力理论来解释暗物质移动的必要。