Tvashtar Paterae compose an active volcanic region of Jupiter's moon Io located near the moon's north pole. This is a sub-article to Io (moon Volcanism on Io, a moon of Jupiter, produces Lava flows volcanic pits and plumes TemplateInfobox Planet.--> Io (ˈaɪoʊ, or as Greek It is a series of paterae, or volcanic craters. A volcanic crater is a circular depression in the ground caused by volcanic activity It is named after Tvashtar, the Hindu god of blacksmiths. In Vedic religion, Tvastr ( Tvaṣṭṛ, also transliterated as Tvashtr, Tvastri or Tvashtri, nominative Tvaṣṭā) Hinduism is a religious tradition that originated in the Indian subcontinent. blacksmith is a person who creates objects from Iron or Steel by Forging the Metal; i  Tvashtar was studied by the Galileo spacecraft over several years. Galileo was an Unmanned spacecraft sent by NASA to study the Planet Jupiter and its moons Named after the Astronomer During this time, a 25 km long, 1 to 2 km high curtain of lava was seen to erupt from one patera, a lake of superheated silicate lava erupted in the largest patera, and finally a plume of gas burst out, rising 385 km above the moon and blanketing areas as far away as 700 km. The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand The Chemical compound silicon dioxide, also known as silica or silox (from the Latin " Silex " is an Oxide 
An eruption on Tvashtar on February 26, 2007 was photographed by the New Horizons probe as it went past Jupiter en route to Pluto. Events 747 BC - Epoch (origin of Ptolemy 's Nabonassar Era 364 - Valentinian I is proclaimed Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. New Horizons is a Robotic spacecraft mission by NASA currently underway The probe observed an enormous 290 km (180 miles) high plume from the volcano, with an as-yet unexplained filamentary structure made clearly visible by the background light from the sun.