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List Of Bolides
The following is a list of bolides and fireballs seen on Earth in recent times. These are small asteroids (known as meteoroids) that regularly impact the Earth. Although most are so small that they burn up in the atmosphere before reaching the surface, some larger objects may reach the surface as fragments, known as meteorites. A few of these are detected by NASA's Sentry system, in which case the impact is predicted. Meteors with a recorded absolute magnitude are then converted to an asteroidal absolute magnitude under (Ma = Mm + 31) and then converted to a diameter assuming that meteoroids brighten by approximate 10 magnitudes when entering the atmosphere. Objects reported only to the American Meteor Society The American Meteor Society, Ltd. (AMS) is a non-profit scientific organization established to encourage and support the research activities of both amateur and professional astronomers who are interested in the field of meteor astronomy. Its affi ... are only listed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolide
A bolide is normally taken to mean an exceptionally bright meteor, but the term is subject to more than one definition, according to context. It may refer to any large Impact crater, crater-forming body, or to one that explodes in the atmosphere. It can be a synonym for a Meteoroid#Fireball, fireball, sometimes specific to those with an apparent magnitude of −4 or brighter. Definitions The word ''bolide'' (; from Italian language, Italian via Latin, ) may refer to somewhat different phenomena depending on the context in which the word appears, and readers may need to make inferences to determine which meaning is intended in a particular publication. An early usage occurs in ''Natural History (Pliny), Natural History'', where Pliny the Elder describes two types of prodigium, prodigies, "those which are called lampades and those which are called bolides". At least one of the prodigies described by Pliny (a "spark" that fell, grew to the "size of the moon", and "returned into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2015 Kerala Meteorite
The 2015 Kerala fireball was a meteor air burst that occurred over Kerala state in India on 27 February 2015. Initial reports The fireball, reportedly accompanied by a sonic boom, was noticed across the sky in parts of Thrissur, Ernakulam, Palakkad, Kozhikode and Malappuram districts of Kerala at around 22:00 PM IST(local time, UTC +5.30 hours) for about 5 to 6 seconds. Initial reports suggested that it may have been a part of a rocket body used to launch the Yaogan Weixing-26, a Chinese satellite launched in December 2014. Later, the Meteorology Department and Disaster Management Authority of Kerala refuted the theory stating that if this was the case, it should have been spotted by the meteorology radars. Impact sites Meteorites (meteoroid debris) hit multiple places in Ernakulam district. Small fragments which are believed to be parts of the meteoroid were recovered from Valamboor, near Kolenchery, and Kuruppampady, near Perumbavoor. A team of scientists from the State Em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Events
An impact event is a collision between astronomical objects causing measurable effects. Impact events have been found to regularly occur in planetary systems, though the most frequent involve asteroids, comets or meteoroids and have minimal effect. When large objects impact terrestrial planets such as the Earth, there can be significant physical and biospheric consequences, as the impacting body is usually traveling at several kilometres per second (km/s), with a minimum impact speed of 11.2 km/s (7.0 mi/s) for bodies striking Earth. While planetary atmospheres can mitigate some of these impacts through the effects of atmospheric entry, many large bodies retain sufficient energy to reach the surface and cause substantial damage. This results in the formation of impact craters and structures, shaping the dominant landforms found across various types of solid objects found in the Solar System. Their prevalence and ubiquity present the strongest empirical evidence of the frequ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteoroids
A meteoroid ( ) is a small rocky or metallic body in outer space. Meteoroids are distinguished as objects significantly smaller than ''asteroids'', ranging in size from grains to objects up to wide. Objects smaller than meteoroids are classified as ''micrometeoroids'' or ''space dust''. Many are fragments from comets or asteroids, whereas others are impact event, collision impact space debris, debris ejected from bodies such as the Moon or Mars. The visible passage of a meteoroid, comet, or asteroid atmospheric entry, entering Earth's atmosphere is called a meteor, and a series of many meteors appearing seconds or minutes apart and appearing to originate from the same fixed point in the sky is called a meteor shower. An estimated 25 million meteoroids, micrometeoroids and other space debris enter Earth's atmosphere each day, which results in an estimated 15,000 tonnes of that material entering the atmosphere each year. A ''meteorite'' is the remains of a meteoroid that has surv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20:33
33 may refer to: *33 (number) *33 BC *AD 33 *1933 *2033 Science * Arsenic, a metalloid in the periodic table * 33 Polyhymnia, an asteroid in the asteroid belt Music * La 33, a Colombian salsa music band Albums * ''33'' (Luis Miguel album) (2003) * ''33'' (Southpacific album) (1998) * ''33'' (Wanessa album) (2016) Songs *"33 'GOD'", a 2016 song by Bon Iver * "Thirty-Three" (song), a 1995 song by the Smashing Pumpkins *"Thirty Three", a song by Karma to Burn from the album ''Almost Heathen'', 2001 *"33", a 2002 song by Coheed and Cambria *"33", a song by Conrad Sewell from his 2023 album ''Precious'' *"33", a song by Sinéad O’Connor from her 2007 album ''Theology'' *"33" a 2020 song by Polo G Television *El 33, a Catalan television channel * "33" (''Battlestar Galactica''), an episode of ''Battlestar Galactica'' Other uses *Los 33, the miners involved in the 2010 Copiapó mining accident **''The 33'', a 2015 film based on the Copiapó mining accident * ''Thirty Three'' (film) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiloton
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. A ton of TNT equivalent is a unit of energy defined by convention to be (). It is the approximate energy released in the detonation of a tonne, metric ton (1,000 kilograms) of trinitrotoluene (TNT). In other words, for each gram of TNT exploded, (or 4184 joules) of energy are released. This convention intends to compare the destructiveness of an event with that of conventional explosive materials, of which TNT is a typical example, although other conventional explosives such as dynamite contain more energy. A related concept is the physical quantity TNT-equivalent mass (or mass of TNT equivalent), expressed in the ordinary unit of mass, units of mass and its multiples: kilogram (kg), megagram (Mg) or tonne (t), etc. Kiloton and megaton The "kiloton (of TNT equivalent)" is a unit of energy equal to 4.184 Metric prefix#List of SI prefixes, terajoules (). A kil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gigajoule
The joule ( , or ; symbol: J) is the unit of energy in the International System of Units (SI). In terms of SI base units, one joule corresponds to one kilogram- metre squared per second squared One joule is equal to the amount of work done when a force of one newton displaces a body through a distance of one metre in the direction of that force. It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second. It is named after the English physicist James Prescott Joule (1818–1889). Definition According to the International Bureau of Weights and Measures the joule is defined as "the work done when the point of application of 1 MKS unit of force ewtonmoves a distance of 1 metre in the direction of the force." In terms of SI base units and in terms of SI derived units with special names, the joule is defined as One joule is also equivalent to any of the following: * The work required to m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Propulsion Laboratory
The Jet Propulsion Laboratory (JPL) is a Federally funded research and development centers, federally funded research and development center (FFRDC) in La Cañada Flintridge, California, Crescenta Valley, United States. Founded in 1936 by California Institute of Technology (Caltech) researchers, the laboratory is now owned and sponsored by NASA and administered and managed by Caltech. The primary function of the laboratory is the construction and operation of planetary robotic spacecraft, though it also conducts Earth-orbit and astronomy missions. It is also responsible for operating the NASA Deep Space Network (DSN). Among the major active projects at the laboratory, some are the Mars 2020 mission, which includes the ''Perseverance (rover), Perseverance'' rover; the Mars Science Laboratory mission, including the ''Curiosity (rover), Curiosity'' rover; the ''Mars Reconnaissance Orbiter''; the ''Juno (spacecraft), Juno'' spacecraft orbiting Jupiter; the ''Soil Moisture Active P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2015 Thailand Bolide
On September 7, 2015, at about 08:40 local time a bolide meteor appeared over Thailand and burned up approximately 100 km (62 mi) above the ground. The meteor briefly flared up producing a green and orange glow before disappearing without a sound of explosion and leaving a white smoke trail. The meteor was recorded by several dashcams during the morning rush hour in Bangkok, and sightings were also reported in Thai towns of Kanchanaburi and Nakhon Ratchasima. The meteor was visible for about four seconds before fading out. As of September 8, 2015 no strewn field has been found. The impact energy was the largest of 2015 at 3.9 kiloton.Fireball and Bolide Reports (JPL) The last impact this large was on 23 August 2014 over the Southern Ocean. Identification< ...
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