Five satellites close their eyes on our planet

• Operating satellites that can see the Earth from space was initially only the purview of the most wealthy nations.
• However, the recent proliferation of commercial satellite companies makes Earth data available to anyone, changing how we understand weather, climate, industry and more.

Details: Planet acquired the RapidEye satellites from BlackBridge in 2015, and it's created the world's largest collection of 5-meter satellite imagery, according to the company.

• The constellation of satellites has captured more than 660,000 pictures of Earth's total landmass, Planet said.
• The satellites' final photos show San Francisco, Berlin and Brandenburg, Germany.
• The satellites could still function, but Planet says it's ending their operation in part to prevent them from becoming space junk that clutters orbit.

Between the lines: While many companies are collecting and attempting to analyze the data beamed down from orbit each day, big data from space still isn't yet widely applicable to a variety of industries.

• Most companies that operate Earth-imaging satellites still rely on government contracts and major industries like oil and gas for much of their business.

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