"機智"號無人機在火星完成首飛

NASA launched its Mars helicopter Ingenuity from the surface of the Red Planet on Monday, marking the first powered, controlled flight of an aircraft on another planet.
4月19日，美國國家航空航天局的"機智"號無人直升機成功完成了在火星上的首次飛行，這是人造航空器首次在另一個行星上受控飛行。

[Photo/Xinhua]

The solar-powered helicopter first became airborne at 3:34 am Eastern Time, a time the Ingenuity team determined would have optimal energy and flight conditions.
"機智"號試飛時間為美國東部時間4月19日3時34分，"機智"號團隊認為這一時間點有最佳的能量和飛行條件。

The Ingenuity team confirmed the flight succeeded after receiving data from the helicopter via NASA's Perseverance Mars rover at 6:46 am ET.
"機智"號無人直升機由太陽能電池板充電。任務(wù)團隊于美東時間當天6時46分接收到"機智"號通過"毅力"號火星車傳回地球的數(shù)據(jù)，確認首飛成功。

Altimeter data indicates Ingenuity climbed to its prescribed maximum altitude of three meters and maintained a stable hover for 30 seconds, according to NASA.
高度計數(shù)據(jù)顯示，"機智"號上升至預設(shè)的3米飛行高度，懸停約30秒，隨后降落并順利在火星著陸。

It then descended, touching back down on the surface of Mars after logging a total of 39.1 seconds of flight.
整個飛行過程持續(xù)了39.1秒。