1.   The reddish colour of the disk is caused by dust and the whitish region in the centre is the bulge.

2.   Apparently it was caused by dust getting in.

3.   Dust can cause a detector to go off when there is no smoke.

4.   In Montana, heavy dust this year caused a similar brownout, resulting in a traffic pileup that killed two television reporters.

5.   Moreover, there are reasons for believing that at high red shift, dust would cause still greater dimming.

6.   Dust can cause respiratory problems that last a lifetime.

7.   During the early evening visibility was restricted by haze caused by dust blown westward with the trade winds from the Sahara Desert.

8.   However El Pais quoted unidentified art experts as saying it may take up to two years to determine if the dust caused lasting damage to any paintings.