Or so suggests new observations of a nearby bright solar type star that is a close analogue to our own.
This implies that one solar-like star out of three harbours such planets.
On Wednesday, Dr. Welsh and his colleagues announced that they have confirmed the existence of two more worlds in distinctive double-star solar systems in the constellation Cygnus.
On Wednesday, Dr. Welsh and his colleagues announced that they have confirmed the existence of two more alien planets in distinctive double-star solar systems in the constellation Cygnus.
"First, this icy 'super-Earth' dominates the region around its star that in our Solar System is populated by the gas-giant planets, Jupiter and Saturn, " he said.
BBC: NEWS | Science/Nature | Planet hunters find 'super-Earth'
But one of--a major constituent of comets, we believe, are stardust, interstellar grains, particles that formed 'round other stars and were the original seed of the star formation of the solar system.
By running repeated computer simulations, he has worked out what would happen if a red-dwarf star were to pass through the solar system.
Lying only 10 light years away in the equatorial constellation of Eridanus, it was already known to harbor at least one extra-solar Jupiter-like planet, which orbits the star roughly every 7 years.
Our sun is enriched with heavy elements, with metals, and oxygen, and so forth, that have to have been made inside another star that died before our sun and our solar system formed.
Mr. EICHER: We can't really understand the solar system and how it got going unless we can really understand the origins and the conditions that happened when the solar nebula, this cloud of gas and dust, contracted down and the star turned on and the planets got going.
We will be able to look at things like new solar systems in formation and particularly the structure of so-called 'protoplanetary discs, ' where we believe a star is growing in the middle and planets are forming around the outside.
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