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States with the most UFO sightings

Using data from the National UFO Reporting Center’s 24/7 hotline, which has been around since 1974, Stacker compiled a ranking of the states with the most reported UFO sightings.

20 environmental crusaders you should know

Stacker scoured data from Apolitical to take a closer look at 20 of the most influential environmental crusaders working in governmental positions, international organizations, and nongovernmental roles.

Which state is this 'Jeopardy!' clue about?

Stacker created its own quiz from the fan-created “Jeopardy!” Archive and curated three clues for each of the 50 U.S. states. The questions cover everything from geography and history to pop culture.

Best countries for children

This story examines the top 50 countries in the world for children, using data from the most recent Save the Children annual report.

Eco-friendly replacements for 50 plastic items in your life

Stacker takes a look at 50 easy, eco-friendly replacements for common plastic items in your life, from zero-waste personal care products and kitchen items to office equipment and ethically sourced, sustainable clothing.

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