假设我们在星系中看到的星球和气体只占了星系总体积的一小部分，那么像这样的速率就说得通了。
If the stars and gas that we can see inside galaxies are only a small portion of their total mass, then the velocities make sense.
如果我们的太阳系有着如此多的非凡的星球，那么在天河中数十亿计的行星系中我们将会发现怎样奇妙的行星世界？
IF OUR solar system holds so many remarkable moons, then what strange satellite worlds might we find among the billions of planetary systems in the Milky Way?
“现在重点的地方是，如果热量限制的范围没有扩展到人类的寿命，那么我们是将是这个星球的例外，”Sinclair附和到。
"It's to the point now where, if caloric restriction does not extend human lifespan, we're an exception on the planet, " Sinclair agrees.
应用推荐