Samantha Cristoforetti tweeted:

Intriguing sight! A bright dot in the Negev desert…so unusual to see human-made lights in day passes! It’s a concentrated solar power plant, one of the technologies to get renewable energy from the Sun. With one of the world’s tallest solar power towers! #MissionMinerva

First picture was taken by a drone - Reuters
The second is from the space station

Source: Jerusalem Post