Early this morning, people in many provinces and cities of our country such as Quang Ngai, Da Nang ... were surprised when a long streak of light appeared in the sky with movement. This strange phenomenon was recorded by many people and posted on social networks, quickly attracting the attention of the online community.
The National Center for Hydro-Meteorological Forecasting said that this phenomenon was due to China successfully launching the Tianzhou-9 spacecraft from the Wenchang launch site in Hainan province using a Long March-7 Y10 rocket.
Launch time is 5:34 (Beijing time), or 4:34 Hanoi time.
"This phenomenon occurs when a rocket is launched at high altitude, through the stratosphere or higher. At that time, the exhaust gases from the rocket engine (including steam, propellant and chemicals) are exposed to sunlight from below the horizon. These particles will reflect light, creating a white or brightly colored streak, stretching and spreading across the night sky , " the meteorological agency explained.
According to information from the China Manned Space Administration (CMSA), in the early morning of July 15, China successfully launched the Tianzhou-9 cargo spacecraft to transport supplies to the Tiangong space station operating in orbit.
The Long March-7 Y10 rocket carrying the Tianzhou-9 spacecraft was launched at 5:34 a.m. Beijing time from the Wenchang launch site in Hainan Province, China. About 10 minutes after leaving the launch pad, the Tianzhou-9 spacecraft separated from the rocket and entered its intended orbit. The spacecraft's solar panels were deployed shortly thereafter.
CMSA confirmed that the launch was a complete success. In the next phase, the space cargo ship will approach and dock with the Tiangong space station complex.
VN (according to VTC News)Source: https://baohaiphongplus.vn/giai-ma-vet-sang-la-xuat-hien-tren-bau-troi-viet-nam-sang-som-nay-416391.html
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