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When a pulsar's spin period slows down sufficiently, the radio pulsar mechanism is believed to turn off (the so-called "death line"). This turn-off seems to take place after about 10–100 million years, which means of all the neutron stars born in the 13.6-billion-year age of the universe, around 99% no longer pulsate.
Aṭ-Ṭāriq [1] (Arabic: الطارق, "the Morning Star", "Nightcomer"), is the eighty-sixth sura of the Quran, with 17 ayat or verses. Muslims believe this chapter was revealed in Mecca at a time when the disbelievers were employing all sorts of devices and plans to defeat and frustrate the message of the Quran and Muhammad.
Schematic view of a pulsar. The sphere in the middle represents the neutron star, the curves indicate the magnetic field lines, the protruding cones represent the emission beams and the green line represents the axis on which the star rotates. Supernovae sometimes leave behind dense spinning neutron stars called pulsars.
Quranic cosmology is the understanding of the Quranic cosmos, the universe and its creation as described in the Quran.. The Quran provides a description of the physical landscape (cosmography) of the cosmos, including its structures and features, as well as its creation myth describing how the cosmos originated (), often related back to notions of the vastness and orderliness of the cosmos.
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Caption text Designation Popular name Type Constellation Right ascension Declination Distance ()Mass ()Radius ()Spin period (sec) Temperature) Notes SGR 1806−20
President-elect Donald Trump announced that Alina Habba, his senior adviser and attorney, will serve as counselor to the president. "As a first generation American of Middle Eastern Heritage, she ...
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