行星在原行星盘消散前加速形成

行星在围绕年轻星的气体和尘埃盘中形成。由于年轻星产生的强风会驱散这些气体，行星必须在数百万年内完成形成过程。

Planets form in protoplanetary disks, reservoirs of gas and dust around young stars. But young stars are a little hyperactive, and they emit powerful winds that can dissipate the gas. So planets, especially gas giants, are in a race against time to form. They only have a few million years before the gas is gone.