SARSEF held its 63rd annual Science and Engineering Fair at the Tucson Convention Center. About 95,000 students from southern Arizona competed to be a part of the fair and 2,117 projects were displayed at the fair.

Ramadan is based on the lunar calendar. During Ramadan, Muslims fast, read the Quran, give to charity, visit each other and pray late at night. The month of Ramadan goes from May 15 until the middle of June. 

The Red Bull Grand Prix of the Americas, the only U.S. stop of the 2018 MotoGP World Championship, brought the best of International motorcycle racing to the Circuit of the Americas in Austin, Texas, the weekend of April 20–22.