Israel launches a major military operation in the Gaza Strip, as hostilities with Hamas escalate.
Mariner 9 enters into orbit around Mars.
Mariner 9 was an unmanned NASA space probe that contributed greatly to the exploration of Mars and was part of the Mariner program. Mariner 9 was launched toward Mars on May 30, 1971 from Cape Canaveral Air Force Station and reached the planet on November 14 of the same year, becoming the first spacecraft to orbit another planet – only narrowly beating the Soviets’ Mars 2 and Mars 3, which both arrived within a month. After months of dust storms it managed to send back clear pictures of the surface.
Mariner 9 returned 7329 images over the course of its mission, which concluded in October 1972. Mariner 9 was designed to continue the atmospheric studies begun by Mariner 6 and 7, and to map over 70% of the Martian surface from the lowest altitude and at the highest resolutions of any Mars mission up to that point. An infrared radiometer was included to detect heat sources in search of evidence of volcanic activity. It was to study temporal changes in the Martian atmosphere and surface. Mars’ two moons were also to be analyzed. Mariner 9 more than met its objectives.
Under original plans, a dual mission was to be flown like Mariners 6–7, however the launch failure of Mariner 8 ruined this scheme and forced NASA planners to fall back on a simpler one-probe mission. NASA still held out hope that another Mariner probe and Atlas-Centaur could be readied before the 1971 Mars launch window closed. A few logistical problems emerged, including the lack of an available Centaur payload shroud of the correct configuration for the Mariner probes, however there was a shroud in NASA’s inventory which could be modified. Convair also had an available Centaur stage on hand and could have an Atlas readied in time, but the idea was ultimately abandoned for lack of funding.
Mariner 9 was mated to Atlas-Centaur AC-23 on May 9 with investigation into Mariner 8’s failure ongoing. The malfunction was traced to a problem in the Centaur’s pitch control servoamplifier and because it was not clear if the spacecraft itself had been responsible, RFI testing was conducted on Mariner 9 to ensure the probe was not releasing interference that could cause problems with the Centaur’s electronics. All testing came back negative and on May 22, a tested and verified rate gyro package arrived from Convair and was installed in the Centaur.
Liftoff took place on May 30 at 5:23 PM EST. All launch vehicle systems performed normally and the Mariner separated from the Centaur at 13 minutes and 18 seconds after launch.
The Lions Gate Bridge that connects Vancouver to North Shore is opened to traffic.
The Lions Gate Bridge, opened in 1938, officially known as the First Narrows Bridge,is a suspension bridge that crosses the first narrows of Burrard Inlet and connects the City of Vancouver, British Columbia, to the North Shore municipalities of the District of North Vancouver, the City of North Vancouver, and West Vancouver. The term “Lions Gate” refers to The Lions, a pair of mountain peaks north of Vancouver. Northbound traffic on the bridge heads in their general direction. A pair of cast concrete lions, designed by sculptor Charles Marega, were placed on either side of the south approach to the bridge in January 1939.
The total length of the bridge including the north viaduct is 1,823 m (5,981 ft). The length including approach spans is 1,517.3 m (4,978 ft), the main span alone is 473 m (1,552 ft), the tower height is 111 m (364 ft), and it has a ship’s clearance of 61 m (200 ft). Prospect Point in Stanley Park offered a good high south end to the bridge, but the low flat delta land to the north required construction of the extensive North Viaduct.
The bridge has three reversible lanes, the use of which is indicated by signals. The centre lane changes direction to accommodate for traffic patterns. The traffic volume on the bridge is 60,000 – 70,000 vehicles per day. Trucks exceeding 13 tonnes are prohibited, as are vehicles using studded tires. The bridge forms part of Highways 99 and 1A.
On March 24, 2005, the Lions Gate Bridge was designated a National Historic Site of Canada.
The novel Moby Dick by Herman Melville is first published.
Moby-Dick, a novel by Herman Melville about the voyage of the whaling ship Pequod, is published by Harper & Brothers in New York. Moby-Dick is now considered a great classic of American literature and contains one of the most famous opening lines in fiction: “Call me Ishmael.” Initially, though, the book about Captain Ahab and his quest for a giant white whale was a flop.
Herman Melville was born in New York City in 1819 and as a young man spent time in the merchant marines, the U.S. Navy and on a whaling ship in the South Seas. In 1846, he published his first novel, Typee, a romantic adventure based on his experiences in Polynesia. The book was a success and a sequel, Omoo, was published in 1847.
After Moby-Dick‘s disappointing reception, Melville continued to produce novels, short stories and poetry, but writing wasn’t paying the bills so in 1865 he returned to New York to work as a customs inspector, a job he held for 20 years. Melville died in 1891, largely forgotten by the literary world. By the 1920s, scholars had rediscovered his work, particularly Moby-Dick, which would eventually become a staple of high school reading lists across the United States.
Several high level Mafia figures are arrested at the so-called The Apalachin Meeting in New York.
Spain gives up on the Western Sahara
James Bruce discovers what he thought was the source of the Nile.
Law enforcement raid a meeting that was called the Apalachin meeting in New York arresting many high level Mafia figures
NASA launches Apollo 12, the second manned mission to the surface of the Moon.