This new measurement suggests some comets — particularly those such as 12P/Pons-Brooks — could indeed have delivered water, and possibly other life-essential elements, to a young Earth.

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New research uncovered compelling evidence — with the aid of a Big Island telescope atop Mauna Kea — that water from a comet is strikingly similar to that found in Earth’s oceans.

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A newly surfaced NASA directive reveals a fast-tracked effort by the United States to deploy a nuclear reactor on the Moon and Mars.

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Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.