Aurora lights shimmering over Earth were filmed on camera by Russia's space agency Roscosmos cosmonaut Sergey Kud-Sverchkov from the International Space Station. The phenomenon is caused by solar storms emitting high-speed charged particles colliding with gases in Earth’s atmosphere. The most common colour seen during this display is green, although other colours such as pink and red are sometimes visible as well.
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В России создали жевательную резинку для защиты от кариесаРоссийские ученые создали умную жевательную резинку для защиты от кариеса。业内人士推荐WPS下载最新地址作为进阶阅读
Валентин Карант (редактор отдела БСССР)