A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself.
A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. The Solar System has eight planets by the most restrictive definition of the term: the terrestrial planets Mercury, Venus, Earth, and Mars, and the giant planets Jupiter, Saturn, Uranus, and Neptune. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk. Planets grow in this disk by the gradual accumulation of material driven by gravity, a process called accretion.
The word planet comes from the Greek πλανήται (planḗtai) 'wanderers'.
Historical Significance
A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself.
IOC restores Jim Thorpe's Olympic medals for his pentathlon and decathlon victories, 70 years after they were stripped from him for accepting $25 to play semi-pro baseball
Final TV episode of "M*A*S*H" airs on CBS, a two-hour special directed by series star Alan Alda titled "Goodbye, Farewell, and Amen"; a record 125 million viewers watch in the US
Francis Ford Coppola ( KOH-pə-lə; born April 7, 1939) is an American filmmaker. One of the leading figures of the New Hollywood, Coppola is widely regarded as one of the greatest and most influential...
This is a list of the oldest extant registered generic top-level domains used in the Domain Name System of the Internet.
Until 1986, Domain Registration was limited to organizations with access to…
Charity single "We Are the World" recorded by supergroup USA for Africa (Michael Jackson, Lionel Richie, Quincy Jones, Bruce Springsteen, Stevie Wonder, and other pop stars)
A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. The Solar System has eight planets by the most restrictive definition of the term: the terrestrial planets Mercury, Venus, Earth, and Mars, and the giant planets Jupiter, Saturn, Uranus, and Neptune. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk.
Why is 1st "planet" outside our solar system discovered significant?
A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself.