2019年10月26日夜間，美國佛羅里達州上空傳來一聲音爆，這個代表美國空軍的X-37B空天飛機經過780天的在軌飛行返回了大氣層，在經過一系列的調整之後，這架X-37B順降落在了一個美國空軍的機場上。這次返回的X-37B創造了一個新的記錄，這就是在軌飛行時間達到了780天。 X-37B是美國研製的一款可以重複使用的航天器，這是一款類似與航天飛機的特殊飛行器，不過在尺寸上要比航天飛機小了不少，包括載荷能力是有很大的差距。
On the evening of October 26, 2019, a sound burst over Florida, this represents the US Air Force's X-37B air plane returned to the atmosphere after 780 days, after a series of adjustments, this The X-37B will fall on an airport in the US Air Force. The X-37B returned this time has created a new record, which is 780 days in the rail flight time. X-37B is a spacecraft developed by the United States. This is a special aircraft similar to aerospace aircraft, but there is a lot of space aircraft, including load capacity is a big gap. .
