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Leonard I. Linkow (February 25, 1926 – January 26, 2017) was an American dentist and pioneer in the field of oral implantology. [1] [2] In 1969, he was nominated for a Nobel Prize in medicine, making him the only dentist to be nominated for the prize. Linkow held 36 patents in dental science. [1]
Montage of planets and some moons that the two Voyager spacecraft have visited and studied. It is the only program that visited all four outer planets. A total of nine spacecraft have been launched on missions that involve visits to the outer planets; all nine missions involve encounters with Jupiter, with four spacecraft also visiting Saturn.
Artist's depiction of Pioneer 10, the first spacecraft to visit Jupiter. The exploration of Jupiter has been conducted via close observations by automated spacecraft.It began with the arrival of Pioneer 10 into the Jovian system in 1973, and, as of 2024, has continued with eight further spacecraft missions in the vicinity of Jupiter and two more en route.
The four-year training culminates in achieving a Bachelor of Dental Surgery (BDS) degree, which requires a further one year compulsory internship to be a registered dentist in Pakistan. [13] As per recent stats, According to the Pakistan Medical Commission , there are almost 28,561 registered BDS doctors in January 2021.
Just one day before opposition, Jupiter will be around 367 million miles away from the Earth, the closest the two planets have been in 59 years, according to NASA. The last time that Jupiter was ...
In 1966, the Moon became the first Solar System body beyond Earth to be orbited by an artificial satellite , followed by Mars in 1971 , Venus in 1975 , Jupiter in 1995 , the asteroid Eros in 2000 (NEAR Shoemaker), Saturn in 2004 (Cassini–Huygens), and Mercury and Vesta in 2011 (MESSENGER and Dawn respectively).
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One galactic year is approximately 225 million Earth years. [2] The Solar System is traveling at an average speed of 230 km/s (828,000 km/h) or 143 mi/s (514,000 mph) within its trajectory around the Galactic Center, [ 3 ] a speed at which an object could circumnavigate the Earth's equator in 2 minutes and 54 seconds; that speed corresponds to ...