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Invisible star attacking Earth? NASA thinks so

In what sounds like a chilling script of a Hollywood science fiction, scientists have claimed that an invisible star, five times the size of Jupiter, might be lurking near our solar system,......

Sedna: The new planetoid in the Solar System

US astronomers have found an icy, red planet-like object, orbiting the sun eight billion miles away, twice as far as Pluto, and stretching the limits of the solar system beyond anything discovered......

  People speak for oort cloud

  • QNA
Q. Do comets always have the same mass?
:  A. A comet is a Small Solar System Body that orbits the Sun and, when close enough to the Sun, exhibits a visible coma (atmosphere) or a tailboth...... more

http://qna.rediff.com/questions-and-answers/do-comets-always-have-the-same-mass//answers/13867693

Nehemia
Q. Name the Dutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992).
Nehemia:  A. Jan Oort more

http://qna.rediff.com/questions-and-answers/name-the-dutch-astronomer-who-proved-that-the-galaxy-is-rota/13865870/answers/10839258

Jack Johnson
Q. What is Oort Cloud ?
Jack Johnson:  A. The Oort cloud is a hypothetical spherical cloud of comets believed to lie roughly 50,000 AU, or nearly a light-year, from the Sun. This distance...... more

http://qna.rediff.com/questions-and-answers/what-is-oort-cloud-/10839249/answers/10605456

vinayan joseph
Q. What are outer planets in our solar system?
Vinayan Joseph:  A. The Solar System or solar system[a] consists of the Sun and the other celestial objects gravitationally bound to it: the eight planets, their 166...... more

http://qna.rediff.com/questions-and-answers/what-are-outer-planets-in-our-solar-system/10588324/answers/7093652

  Web results for Oort Cloud
Many Solar System Comets May Be Sun's Stolen Goods

At least 5 percent of the comets in our Oort cloud may have originated around other stars. ...

http://www.space.com/14704-sun-stolen-comets-oort-cloud.html
Many Solar System Comets May Be Sun's Stolen Goods

At least 5 percent of the comets in our Oort cloud may have originated around other stars. ...

http://feeds.livescience.com/~r/Livesciencecom/~3/1uZO6vqNtVw/18728-sun-stolen-comets-oort-cloud.html
Many Solar System Comets May Be Sun's Stolen Goods

At least 5 percent of the comets in our Oort cloud may have originated around other stars. ...

http://feeds.space.com/~r/Livesciencecom/~3/1uZO6vqNtVw/18728-sun-stolen-comets-oort-cloud.html
Many Solar System Comets May Be Sun's Stolen Goods

At least 5 percent of the comets in our Oort cloud may have originated around other stars. ...

http://feeds.space.com/~r/spaceheadlines/~3/TGlUwpb-J9Q/14704-sun-stolen-comets-oort-cloud.html
Can WISE find the hypothetical 'Tyche' planet at edge of our solar system?

Two astrophysicists recently proposed the existence of a binary companion to our sun, larger than Jupiter, in the long-hypothesized "Oort cloud" --... ...

http://feeds.sciencedaily.com/~r/sciencedaily/~3/CeyxbAKhdcI/110220204429.htm

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