Rosetta Observations Spark Debate on Origin of Earth's Water

Comet 67P/Churyumov-Gerasimenko on 20 November 2014. This mosaic comprises four individual NAVCAM images taken from 30.8 km from the centre of Comet 67P/Churyumov-Gerasimenko on 20 November 2014. Credit: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0

Comets? Asteroids? Or what?

One of the most basic questions driving Astronomy and Space Exploration is: Where did the […]

Herschel Completes Its ‘Cool’ Journey in Space

Image Credit: European Space Agency

WASHINGTON — The Herschel Observatory, a European space telescope for which NASA helped build instruments and process data, has stopped making observations after running out of liquid coolant as expected.

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