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Monday, September 26, 2022
Home New measurements from the Herschel Space Observatory have discovered water with the same chemical signature as our oceans in a comet called Hartley 2 (pictured at right). (Image credit: NASA/JPL-Caltech) New measurements from the Herschel Space Observatory have discovered water with the same chemical signature as our oceans in a comet called Hartley 2 (pictured at right). (Image credit: NASA/JPL-Caltech)

New measurements from the Herschel Space Observatory have discovered water with the same chemical signature as our oceans in a comet called Hartley 2 (pictured at right). (Image credit: NASA/JPL-Caltech)

New measurements from the Herschel Space Observatory have discovered water with the same chemical signature as our oceans in a comet called Hartley 2 (pictured at right). (Image credit: NASA/JPL-Caltech)

New measurements from the Herschel Space Observatory have discovered water with the same chemical signature as our oceans in a comet called Hartley 2 (pictured at right). (Image credit: NASA/JPL-Caltech)

Using the Herschel Space Observatory, astronomers have discovered that comet Hartley 2 possesses a ratio of “heavy water” to light, or normal, water that matches what’s found in Earth’s oceans. (Image credit: NASA/JPL-Caltech)