The team is using thousands of frames of re-entry data to paint a picture of the shuttle's heating patterns., ...

The authors note that the novelty factor of having an exercise bike did wear off so additional motivation would be needed to ...

Robust home sales and construction can help drive an economic recovery. But economist Karen Dynan says that probably won't ...

Although these animals do not wallow, they roll on the ground in order to \scent mark\, which has an important role in attracting a mate., 尽管这些动物不在泥巴里打滚，但它们在陆地上打滚，留下气味，有利于吸引异性。