By Sam Truelove There are warnings that mobile phone services might go down during the upcoming total solar eclipse. On April 8, a total solar eclipse will travel across North America. It will pass over Mexico, the United States and Canada. A total solar eclipse happens when the Moon moves between the Sun and Earth, completely hiding the Sun. NASA says the eclipse will start in Texas in the US and move through lots of other states. Millions of people are expected to travel to countryside areas to get the best view of the eclipse. But this could cause problems for mobile phone companies, report…