イヴァンカ・トランプのインスタグラム(ivankatrump) - 8月20日 23時59分

Wondering how it works? In a solar eclipse, the moon passes between the sun and the Earth and blocks all or part of the sun for up to about three hours. Carbondale, Illinois will experience the longest period of darkness in the US this time, lasting approximately 2 hours and 40 minutes. Are you in the path of totality? #Eclipse2017 #NASA #STEM

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する

• airandspacemuseum
• NASA
• スミソニアン博物館