Tuesday, August 12, 2014

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News

Follow the radio waves to find hidden exomoons

Posted: 11 Aug 2014 02:02 PM PDT

Scientists hunting for life beyond Earth have discovered more than 1,800 planets outside our solar system, or exoplanets, in recent years, but so far, no one has been able to confirm an exomoon. Now, physicists believe following a trail of radio wave emissions may lead them to that discovery.

Comets forge organic molecules in their dusty atmospheres

Posted: 11 Aug 2014 12:11 PM PDT

Scientists have made incredible 3D images of the ghostly atmospheres surrounding comets ISON and Lemmon. These new observations provided important insights into how and where comets forge new chemicals, including intriguing organic compounds.

Astrophysicists detect destruction of 3 stars by supermassive black holes

Posted: 11 Aug 2014 09:51 AM PDT

Researchers have reported registering three possible occasions of the total destruction of stars by supermassive black holes at the centers of galaxies.

All-you-can-eat at the end of the universe: How early black holes could have grown to billions of times the mass of our sun

Posted: 11 Aug 2014 09:48 AM PDT

A new model shows how early black holes could have grown to billions of times the mass of our sun. These giant bodies -- quasars -- feed on interstellar gas, swallowing large quantities of it non-stop. Thus they reveal their existence: The light that is emitted by the gas as it is sucked in and crushed by the black hole's gravity travels for eons across the Universe until it reaches our telescopes. Looking at the edges of the Universe is therefore looking into the past. These far-off, ancient quasars appear to us in their "baby photos" taken less than a billion years after the Big Bang: monstrous infants in a young Universe.
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