scholarly journals On the possibility of through passage of asteroid bodies across the Earth’s atmosphere

2020 ◽  
Vol 493 (1) ◽  
pp. 1344-1351 ◽  
Author(s):  
Daniil E Khrennikov ◽  
Andrei K Titov ◽  
Alexander E Ershov ◽  
Vladimir I Pariev ◽  
Sergei V Karpov
Keyword(s):  
Outer Space ◽  
Initial Mass ◽  
Substantial Fraction ◽  
Water Ice ◽  
Earth’S Atmosphere ◽  
Asteroid Body ◽  
Tunguska Event ◽  
Earth's Atmosphere ◽  
Solar Orbit

ABSTRACT We have studied the conditions of through passage of asteroids with diameters 200, 100, and 50 m, consisting of three types of materials – iron, stone, and water ice, across the Earth’s atmosphere with a minimum trajectory altitude in the range 10–15 km. The conditions of this passage with a subsequent exit into outer space with the preservation of a substantial fraction of the initial mass have been found. The results obtained support our idea explaining one of the long-standing problems of astronomy – the Tunguska phenomenon, which has not received reasonable and comprehensive interpretations to date. We argue that the Tunguska event was caused by an iron asteroid body, which passed through the Earth’s atmosphere and continued to the near-solar orbit.

scholarly journals Die Hubble-Ruimteteleskoop: ’n Kort Oorsig

1999 ◽  
Vol 18 (3) ◽  
pp. 97-100
Author(s):  
C. Koen
Keyword(s):  
Outer Space ◽  
Earth’S Atmosphere ◽  
The Earth ◽  
Earth's Atmosphere ◽  
Adverse Influence

Telescopes are placed in orbit around the earth in order to avoid the adverse influence of the earth's atmosphere on radiation from outer space.

Swarm of fragments from the Tunguska event

2020 ◽  
Vol 496 (2) ◽  
pp. 1144-1148
Author(s):  
Olga G Gladysheva
Keyword(s):  
Noctilucent Clouds ◽  
Cosmic Body ◽  
Earth’S Atmosphere ◽  
Large Size ◽  
Tunguska Event ◽  
Earth's Atmosphere ◽  
Abnormal Effect

ABSTRACT The Tunguska event took place on 1908 June 30. It was accompanied by an abnormal effect on the Earth's atmosphere, manifesting itself through ‘white nights’. These nights were associated with a dispersion of cosmic matter and the formation of a field of noctilucent clouds with a uniquely large size of over 10 million km2. However, overall, the cosmic matter was scattered over a territory of around 18 million km2. The most likely cause of the Tunguska event was the flux of fragments from the broken-up cometary object. The destruction of the cosmic body over Siberia, according to local inhabitants, was marked by numerous sound phenomena. After analysing eyewitness accounts, we can conclude that there were at least two major objects at the Tunguska event. The largest object exploded over the Taiga and caused damage to the forest. In addition, there were several dozen fragments of around 10 m in size, as well as many fragments of a smaller size.

scholarly journals Introduction to Special Issue: The Mutual Influence of Religion and Science in the Human Understanding and Exploration of Outer Space

Religions ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 444
Author(s):  
Deana L. Weibel ◽  
Glen E. Swanson
Keyword(s):  
Scientific Method ◽  
Mutual Influence ◽  
Outer Space ◽  
Religion And Science ◽  
Special Issue ◽  
Earth’S Atmosphere ◽  
Distant Galaxies ◽  
Human Understanding ◽  
Earth's Atmosphere ◽  
Engineering Physics

When considering the exploration of outer space people typically think about technology, engineering, physics, and the use of the scientific method to understand what is out there, beyond the Earth’s atmosphere, from the nearby Moon to distant galaxies only visible through the use of high-powered telescopes [...]

Detection of a high density meteoroid on cometary orbit

1999 ◽  
Vol 173 ◽  
pp. 163-168 ◽  
Author(s):  
P. Spurný ◽  
J. Borovička
Keyword(s):  
High Density ◽  
Asteroid Belt ◽  
Initial Mass ◽  
Earth’S Atmosphere ◽  
Cometary Orbit ◽  
Entry Velocity ◽  
Interplanetary Matter ◽  
Earth's Atmosphere ◽  
Heliocentric Orbit

AbstractWe report a detection of a unique fireball photographed at three Czech stations of the European Fireball Network on June 1, 1997. The main exceptionality of this fireball is given by its retrograde heliocentric orbit (i= 138°) typical for comets and, at the same time, a behavior in the Earth’s atmosphere typical for the hardest component of the interplanetary matter. The spectrum of the fireball is unique by the absence of the sodium line. With the entry velocity of 65 km s−1, the meteoroid of an estimated initial mass of 0.2 kg (diameter of several centimeters) penetrated down the altitude 65 km, i.e. significantly deeper (about 25 km) than cometary meteoroids of a comparable velocity and mass. A comparison with a typical cometary meteoroid is demonstrated on anηAquarid fireball photographed one month before.The event reported is unique in decades-long records of the fireball networks. The origin of the meteoroid in the asteroid belt is highly improbable owing to the orbit. The possibility that comets contain centimeter sized compact stones is therefore suggested.

1. What is special about Earth’s atmosphere?

2017 ◽  
pp. 1-19
Author(s):  
Paul I. Palmer
Keyword(s):  
Middle Atmosphere ◽  
Outer Space ◽  
Upper Atmosphere ◽  
Lower Atmosphere ◽  
Earth’S Atmosphere ◽  
Relative Proximity ◽  
Earth's Atmosphere ◽  
Different Characteristics

‘What is special about Earth’s atmosphere?’ describes the several interconnected layers that make up Earth’s atmosphere before considering the atmospheres of other planets. Each layer has different characteristics determined by the density of air and their relative proximity to Earth’s surface and outer space. The lower atmosphere consists of the troposphere, which extends from the surface to the tropopause at 10–15 km. The middle atmosphere is comprised of the stratosphere, extending to the stratopause at 50 km, and the mesosphere that stretches to the mesopause at 100 km. Above this is the upper atmosphere divided into the thermosphere, which takes us to 500–1,000 km, and the exosphere, which extends to the near vacuum of outer space.

scholarly journals Marking Territory in the Infinite—Speculating on the implications of flags in space

2017 ◽  
Author(s):  
Taylor R. Genovese
Keyword(s):  
Outer Space ◽  
Earth’S Atmosphere ◽  
Earth's Atmosphere

Originally posted here: http://peepsforum.com/international-flag-planet-earth/An article discussing the colonization of outer space and what possible philosophical implications of carrying flags outside of Earth's atmosphere.

Calorimeters for Measuring Natural Phenomena

2018 ◽  
Author(s):  
Richard Wigmans
Keyword(s):  
Cosmic Rays ◽  
Outer Space ◽  
High Energy ◽  
Natural Phenomena ◽  
Cherenkov Telescopes ◽  
Earth’S Atmosphere ◽  
High Energy Cosmic Rays ◽  
Andromeda Galaxy ◽  
Supernova Explosions ◽  
Earth's Atmosphere

Since the first edition of this book appeared (2000), there has been a spectacular development in the use of calorimeters for measuring natural phenomena, such as the detection of ultra-high-energy cosmic rays, or neutrinos from sources such as the Sun, the Earth’s atmosphere, or the Universe at large. This development is documentsed in this chapter. It starts with a section on SuperKamiokande, which has already collected two Nobel prizes, and its envisaged successor HyperKamiokande, which is designed to be sensitive to neutrinos from supernova explosions in the Andromeda galaxy. On an even larger scale, several sections of the Mediterranean sea as well a cubic kilometre of ice under the South Pole are looking for neutrinos from outer space, and are detecting other interesting phenomena as well. The Earth’s atmosphere is used as a huge calorimeter by experiments such as Auger and KASKADE-Grande. Combined with dedicated Cherenkov telescopes, such as HESS, these experiments have provided important new insights in mysterious aspects of the high-energy component of the cosmic rays that bombard our planet, such as the knees in the PeV-EeV region and the GZK cutoff.

Using CUS Words in the NICU

2008 ◽  
Vol 27 (6) ◽  
pp. 423-424 ◽  
Author(s):  
Sherri Lee Simons
Keyword(s):  
Outer Space ◽  
Safety Information ◽  
Cutting Edge ◽  
The Moon ◽  
Earth’S Atmosphere ◽  
Differences Of Opinion ◽  
Earth's Atmosphere ◽  
Science Disciplines

THE NATIONAL AERONAUTICS AND Space Administration (NASA) has been known for having some of the best employees in various engineering and science disciplines over the years. NASA’s collective accomplishments and cutting-edge technology made it possible for humankind to explore the moon and outer space, a feat once thought impossible. Yet, despite all of NASA’s accomplishments, on February 1, 2003, seven astronauts died when the Columbia incinerated on reentry into Earth’s atmosphere. A key contributor to that tragedy was a culture that fostered ineffective communication of critical safety information and stifled professional differences of opinion.1,2

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