Record-breaking solar plane is grounded:
A solar-powered plane has been grounded by damaged batteries for at least a fewweeks after completing its recordbreaking five-day journey from Japan to Hawaii. The Solar Impulse 2’s team says the batteries were over-insulated and became overheated on the first day of the Japan-Hawaii leg. The plane won’t fly before the beginning of August as the team works to replace and repair damaged parts. The plane landed in Hawaii on July 3 after completing a 118-hour voyage that broke the record for the world’s longest nonstop solo flight. The Solar Impulse 2 is next headed to Phoenix as part of an around-the-world flight.