A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, according to general relativity it has no locally detectable features. In many ways, a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.
The Summer Olympic Games or the Games of the Olympiad, first held in 1896, is a major international multi-sport event normally held once every four years. The most recent Summer Olympics were held in Rio de Janeiro, Brazil. The International Olympic Committee (IOC) organises the Games and oversees the host city's preparations. In each Olympic event, gold medals are awarded for first place, silver medals are awarded for second place, and bronze medals are awarded for third place; this tradition began in 1904. The Winter Olympic Games were created out of the success of the Summer Olympics.
Time is the indefinite continued progress of existence and events that occur in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of various measurements used to sequence events, to compare the duration of events or the intervals between them, and to quantify rates of change of quantities in material reality or in the conscious experience. Time is often referred to as a fourth dimension, along with three spatial dimensions.
The decathlon is a combined event in athletics consisting of ten track and field events. The word "decathlon" was formed, in analogy to the word "pentathlon", from Greek δέκα and ἄθλος. Events are held over two consecutive days and the winners are determined by the combined performance in all. Performance is judged on a points system in each event, not by the position achieved. The decathlon is contested mainly by male athletes, while female athletes typically compete in the heptathlon.
The Championships, Wimbledon, commonly known simply as Wimbledon or The Championships, is the oldest tennis tournament in the world and is regarded by many as the most prestigious. It has been held at the All England Club in Wimbledon, London, since 1877 and is played on outdoor grass courts, and since 2009 with a retractable roof over Centre Court.
The Ultimate Fighting Championship (UFC) is an American mixed martial arts (MMA) promotion company based in Las Vegas, Nevada, which is owned and operated by Endeavor Group Holdings along with Silver Lake Partners, Kohlberg Kravis Roberts and MSD Capital via Zuffa, LLC. It is the largest MMA promotion company in the world and features some of the highest-level fighters in the sport on its roster. The UFC produces events worldwide that showcase twelve weight divisions and abides by the Unified Rules of Mixed Martial Arts. As of 2020, the UFC has held over 500 events. Dana White has been UFC president since 2001. Under White's stewardship, the UFC has grown into a globally popular multi-billion-dollar enterprise.
Track and field is a sport which includes athletic contests established on the skills of running, jumping, and throwing. The name is derived from where the sport takes place, a running track and a grass field for the throwing and some of the jumping events. Track and field is categorized under the umbrella sport of athletics, which also includes road running, cross country running, and racewalking.
Killed in action (KIA) is a casualty classification generally used by militaries to describe the deaths of their own combatants at the hands of hostile forces. The United States Department of Defense, for example, says that those declared KIA need not have fired their weapons but have been killed due to hostile attack. KIAs include those killed by friendly fire in the midst of combat, but not from incidents such as accidental vehicle crashes, murder and other non-hostile events or terrorism. KIA can be applied both to front-line combat troops and to naval, air and support troops. Someone who is killed in action during a particular event is denoted with a † (dagger) beside their name to signify their death in that event or events.
The 2020 Summer Olympics, officially the Games of the XXXII Olympiad and commonly known as Tokyo 2020, is an upcoming international multi-sport event to be held in Tokyo, Japan. Originally scheduled to take place between 24 July and 9 August 2020, the Games were rescheduled for 23 July to 8 August 2021 as a result of the COVID-19 pandemic. Despite being held in 2021, the Games of the XXXII Olympiad will keep the name Tokyo 2020 for marketing and branding purposes. This is the first time that the Summer Olympic Games have been postponed rather than cancelled.
The Great American Bash is a professional wrestling event produced by World Wrestling Entertainment (WWE). It was originally produced on pay-per-view (PPV) by the National Wrestling Alliance's (NWA) Jim Crockett Promotions (JCP), World Championship Wrestling (WCW), and then by WWE. According to Ric Flair in his autobiography, To Be the Man, Dusty Rhodes invented the concept of The Great American Bash.
Michael Fred Phelps II is an American former competitive swimmer and the most successful and most decorated Olympian of all time, with a total of 28 medals. Phelps also holds the all-time records for Olympic gold medals (23), Olympic gold medals in individual events (13), and Olympic medals in individual events (16). When he won eight gold medals at the 2008 Beijing Games, Phelps broke fellow American swimmer Mark Spitz's 1972 record of seven first-place finishes at any single Olympic Games. At the 2004 Summer Olympics in Athens, Phelps had already tied the record of eight medals of any color at a single Games by winning six gold and two bronze medals. At the 2012 Summer Olympics in London, Phelps won four gold and two silver medals, and at the 2016 Summer Olympics in Rio de Janeiro, he won five gold medals and one silver. This made him the most successful athlete of the Games for the fourth Olympics in a row.
The PGA Tour is the organizer of the main professional golf tours played by men in the United States and North America. It organizes most of the events on the flagship annual series of tournaments also known as the PGA Tour, as well as PGA Tour Champions and the Korn Ferry Tour, as well as PGA Tour Canada, PGA Tour Latinoamérica, and PGA Tour China. The PGA Tour is a nonprofit organization headquartered in Ponte Vedra Beach, Florida, a suburb of Jacksonville.
Eurosport 1 is a pan-European television sports network channel operated by Eurosport, a subsidiary of Discovery, Inc. Discovery took a 20% minority interest share in December 2012, and became majority shareholder in the Eurosport venture with TF1 in January 2014, taking a 51% share of the company, On 22 July 2015 Discovery agreed to acquire TF1's remaining 49% stake in the venture.
UFC on ESPN: Poirier vs. Hooker was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on June 27, 2020 at the UFC APEX facility in Las Vegas, Nevada, United States.
UFC 251: Usman vs. Masvidal was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 12, 2020 at the Flash Forum on Yas Island, Abu Dhabi, United Arab Emirates. It was originally planned to take place on June 6 at Perth Arena in Perth, Australia. Due to the COVID-19 pandemic, the event was eventually postponed on April 9 (see section below). In early June, it was confirmed that the event would instead take place in Abu Dhabi.
UFC on ESPN: Kattar vs. Ige was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 16, 2020 at the Flash Forum on Yas Island, Abu Dhabi, United Arab Emirates.
UFC Fight Night: Figueiredo vs. Benavidez 2 is an upcoming mixed martial arts event produced by the Ultimate Fighting Championship that will take place on July 19, 2020 at the Flash Forum on Yas Island, Abu Dhabi, United Arab Emirates.
UFC on ESPN: Whittaker vs. Till is an upcoming mixed martial arts event produced by the Ultimate Fighting Championship that will take place on July 26, 2020 at the Flash Forum on Yas Island, Abu Dhabi, United Arab Emirates.
