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Location: UFOUpDatesList.Com > 2012 > Jan > Jan 16

Goldilocks Moons

From: UFO UpDates - Toronto <post.nul>
Date: Mon, 16 Jan 2012 08:39:28 -0500
Archived: Mon, 16 Jan 2012 08:39:28 -0500
Subject: Goldilocks Moons




Source: UniverseToday.Com

http://tinyurl.com/6p9ypoa

January 14, 2012


Goldilocks Moons
by Mike Simonsen

The search for extraterrestrial life outside our Solar System is
currently focused on extrasolar planets within the 'habitable
zones' of exoplanetary systems around stars similar to the Sun.
Finding Earth-like planets around other stars is the primary
goal of NASA's Kepler Mission.

The habitable zone (HZ) around a star is defined as the range of
distances over which liquid water could exist on the surface of
a terrestrial planet, given a dense enough atmosphere.
Terrestrial planets are generally defined as rocky and similar
to Earth in size and mass. A visualization of the habitable
zones around stars of different diameters and brightness and
temperature is shown here. The red region is too hot, the blue
region is too cold, but the green region is just right for
liquid water. Because it can be described this way, the HZ is
also referred to as the “Goldilocks Zone”.

Normally, we think of planets around other stars as being
similar to our solar system, where a retinue of planets orbits a
single star. Although theoretically possible, scientists debated
whether or not planets would ever be found around pairs of stars
or multiple star systems. Then, in September, 2011, researchers
at NASA's Kepler mission announced the discovery of Kepler-16b,
a cold, gaseous, Saturn-sized planet that orbits a pair of
stars, like Star Wars' fictional Tatooine.

This week I had the chance to interview one of the young guns
studying exoplanets


[More at site... thanks to 'The Norm' for the lead]




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