When they are being manufactured in a weightless environment, those atoms line up absolutely perfectly. The vacuum of space also means that contaminants can't sneak in.
Британский самолет-разведчик заметили в районе КрымаБританский самолет-разведчик совершил полет над Черным морем в районе Крыма
。搜狗输入法下载对此有专业解读
和 Author, 蘇蘭賈娜·特瓦里（Suranjana Tewari）,
Agar plates with E.coli growth on various concoctions, including MacConkey, Mueller-Hinton, and Brain Heart Infusion. Credit: HansN.