猎鹰重载火箭发射特写
影像来源与版权:SpaceX

说明:在这张猎鹰重载火箭发射的特写影像里,总共有27部默林火箭引擎同时点火喷发。在4月11日,由3架猎鹰九号第一级火箭(每架有9部默林火箭引擎)发展出来的猎鹰重载火箭,从美国航太总署甘迺迪太空中心的第39A发射站出发。这艘第二次发射的猎鹰重载火箭,正载送阿拉伯6A(Arabsat6A)通信卫星前往太空。在2018年2月,猎鹰重载火箭进行了首次发射,当时火箭上的酬载是恒星人与一部特斯拉跑车。设计目标是要重复使用的猎鹰重载火箭,在此次发射后,助推火箭和中央的核心火箭都安全回到地球上。其中,助推火箭返航到卡纳维尔岬空军站的降落区,而核心火箭则降落在停泊于海上的无人驾驶空港船“当然我仍然爱你”号上。
翻译:“每日一天文图”成大物理分站

Falcon Heavy Launch Close Up
Image Credit & Copyright: SpaceX

Explanation: Twenty seven Merlin rocket engines are firing in this close-up of the launch of a Falcon Heavy rocket. Derived from three Falcon 9 first stage rockets with nine Merlin rocket engines each, the Falcon Heavy left NASA’s Kennedy Space Center launch pad 39A on April 11. This second launch of a Falcon Heavy rocket carried the Arabsat 6A communications satellite to space. In February of 2018, the first Falcon Heavy launch carried Starman and a Tesla Roadster. Designed to be reusable, both booster stages and the central core returned safely to planet Earth, the boosters to Cape Canaveral Air Force Station landing zones. The core stage landed off shore on autonomous spaceport drone ship “Of Course I Still Love You”.
Astronomy Picture of the Day 04/20/2019