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夏は天の川が一番よく見える季節。天の川をまたぐようにして、「夏の大三角形」が形作られている＝うすだスタードーム撮影・提供 今年4月、JAXAが開設した「美笹深宇宙探査用地上局」で新アンテナの運用が始まった。口径は約54メートルと巨大サイズ。同観測所にあるアンテナ（口径約64メートル）が老朽化したため、後継として建設された。「はやぶさ2」と交信するなどのミッションを果たす重要な役割を担う。佐久市に設置されたのは...
Using the NICER telescope on the International Space Station, researchers determined that the pulsar in the Crab Nebula releases millisecond-long pulses of radio waves, called giant radio pulses, that are accompanied by X-ray surges.
Giant radio pulses and X-ray surges are coming from the Crab Nebula The hauntingly beautiful Crab Nebula, located 6,500 light-years away in the Taurus constellation, is releasing an incredible amount of energy. The nebula is six light-years wide, and it’s a growing cloud of debris formed from a supernova explosion. (A light-year is six trillion miles). The light from this supernova first reached Earth in July 1054 and was witnessed by astronomers in Japan and China. When the star exploded, it formed a neutron star, which is the dense core of a star that is about the size of a city like Chic...
E-Mail IMAGE: The Crab Nebula, the six-light-year-wide expanding cloud of debris from a supernova explosion, hosts a neutron star spinning 30 times a second that is among the brightest pulsars in the... view more Credit: Credit: NASA, ESA, J. Hester and A. Loll (Arizona State University) A global science collaboration using data from NASA's Neutron star Interior Composition Explorer (NICER) telescope on the International Space Station has discovered X-ray surges accompanying radio bursts from the pulsar in the Crab Nebula. The finding shows that these bursts, called giant radio pu...