Follow-Up Observation Plan on SSO of Purple Mountain ObservatoryReportar como inadecuado

Follow-Up Observation Plan on SSO of Purple Mountain Observatory - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 Purple Mountain Observatory

Abstract : Our planet inhabits a hazardous environment. Earth is continually bombarded by cosmic objects. Luckily for us, most are very small and cause no harm to life. Some, however, are large and cause considerable harm. Humanity has the capacity to detect and perhaps to counter an impending natural disaster. One testimony is the discovery in the late 1980s of the approximately 200-kilometer-diameter Chicxulub crater formed by an impact 65 million years ago in the Yucatan peninsula Hildebrand 1991. The asteroid or comet that caused this crater is estimated to have been about 10 kilometers in diameter; its impact wrought global devastation, likely snuffing out species in huge numbers including dinosaurs. As another realistic testimony, the collision of comet Shoemaker-Levy 9 with Jupiter in 1994 emphasized that impacts are currently possible. Recognizing that impacts from Near Earth Objects represent a hazard to humanity, the United States, European Union, China and other countries cooperatively organized to identify, track and study NEOs in an effort termed Spaceguard. The NEOST is constructed to undertake this mission.

Autor: H. Zhao -



Documentos relacionados