Californians who install rooftop solar after Friday will now earn less for the electricity they generate thanks to new energy rules kicking in Friday. The solar industry has seen an influx of customers rushing to secure lower rates, but some worry that boom will become a bust. Then, artificial intelligence has caused San Diego-based tech company Qualcomm to remodel its mission. Finally, our local deserts have two major art events — Coachella and Desert X. We’ll have details and tips on how to go.