Largest Ever Water Reservoir Discovered in Space

International Business Times: Largest Ever Water Reservoir Discovered in Space
Astronomers have found a massive water vapor cloud, floating around a black hole in the universe, marking the largest discovery of water -- anywhere.

The reservoir is gigantic, holding 140 trillion times the mass of water in the Earth's oceans, residing 10 billion light years away.

"Since astronomers expected water vapor to be present even in the early universe, the discovery of water is not itself a surprise," the Carnegie Institution, one of the groups behind the findings, said.

The water cloud was found to be in the central regions of a faraway quasar.

"Quasars contain massive black holes that steadily consuming a surrounding disk of gas and dust; as it eats, the quasar spews out amounts of energy," the Institution said in its statement.

The quasar where the gigantic water reservoir is located is some 12 billion years old, only 1.6 billion years younger than the Big Bang. It is older than the formation most of the stars in the disk of the Milky Way galaxy.

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The discovery was part of a larger study of the quasar named APM 08279+5255, where the black hole is 20 billion times greater than the sun. There researched found water vapor around the black hole extending hundreds of light-years in size.

Astronomers expected water vapor to be present even in the early, distant universe, but had not detected it this far away before.

There's water vapor in the Milky Way, although the total amount is 4,000 times less than in the quasar, because most of the Milky Way's water is frozen in ice.

"The environment around this quasar is very unique in that it's producing this huge mass of water. It's another demonstration that water is pervasive throughout the universe, even at the very earliest times.," said NASA scientist Matt Bradford.

Research on the discovery is slated to be published in a coming issue of Astrophysical Journal Letters.

NASA made their observations starting in 2008, using an instrument called "Z-Spec" at the California Institute of Technology's Submillimeter Observatory, a 33-foot (10-meter) telescope near the summit of Mauna Kea in Hawaii.

Follow-up observations were made with the Combined Array for Research in Millimeter-Wave Astronomy (CARMA), an array of radio dishes in the Inyo Mountains of Southern California

Astronomers and scientists from the Jet Propulsion Laboratory, the California Institute of Technology, the University of Maryland, the University of Colorado, the University of Pennsylvania, and the Institute for Space and Astronautical Science in Japan were involved.

The research team was comprised of a wide array of international talent. The Carnegie Institution's Eric Murphy headed up the study.

Funding for Z-Spec was provided by the National Science Foundation, NASA, the Research Corporation and the partner institutions.