1.   A massive sandstorm enveloped much of Egypt on Friday, reducing visibility to zero in many places.

2.   A massive sandstorm enveloped Cairo and other parts of Egypt on Friday, reducing visibility to zero in many places.

3.   A massive sandstorm that turned the sky from gray to red to eerie white enveloped much of Egypt on Friday, reducing visibility to zero in many places.

4.   In the past, some scientists have speculated that massive sandstorms killed and covered the creatures.