Prompt: Latest technology news summary
Response: :

1) Scientists have developed a new type of solar cell that can convert more energy from the sun than traditional solar cells.

2) Google has unveiled a new AI-powered smart speaker dubbed the Home Hub.

3) Facebook has announced that it will allow businesses to sell targeted ads through its ad platform.

4) Apple has released a new update for its iPhone software that includes new features for augmented reality and virtual reality.

5) Tesla has announced that it will be expanding its factory in China by an additional 500,000 square feet.