NASA, SpaceX to study boosting Hubble to higher orbit in a bid to extend its life

Jared Isaacman, founder and CEO of Shift4 Payments, is seen here in February 2021, in Hawthorne, California. (Patrick T. Fallon/AFP/Getty Images/CNN) Jared Isaacman, founder and CEO of Shift4 Payments, is seen here in February 2021, in Hawthorne, California. (Patrick T. Fallon/AFP/Getty Images/CNN)

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Exploring a tunnel deep below Niagara Falls

Turbines that once harnessed the powerful energy of Niagara Falls into a great source of electricity came to a halt years ago. But the secrets deep below the power station are coming to life once again. Visitors can now explore the former cathedral of power and a new tunnel that opens to a spectacular view of the falls.

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