Near earth objectsEffective countermeasuresThe long-term stability of the Solar System is not well understood. Ironically its stability is taken for granted even though our knowledge of all the constituents (comets, asteroids. (The Asteroid Belt between Mars and Jupiter, Trojan Asteroids, Kuiper belt...
Near-Earth object velocity distributions and consequences for theChicxulub impactorS. V. Jeffers, 1,2 S. P. Manley, 1 M. E. Bailey 1P and D. J. Asher 11 Armagh Observatory, College Hill, Armagh BT61 9DG2 School of Physics and Astronomy, University of St Andrews, St Andrews, Fife KY...
On a near-future earth threatened by cataclysmic warming, a super-intelligent algorithm is tasked with handling every aspect of governance, settling political, legal, and individual questions with the final authority of a monarch-oracle. But King Rao, the Algo’s ruthlessly ambitious tech-billionaire...
I haven’t been writing much lately. Like many people I waffle between open hostility and absolutely crushing sadness re: Earth and its artifacts. I write better when hostile, but hostility requires an enemy, and the hopelessness of it all brought on whatever it is that other writers have ot...
Inversion polymorphisms constitute an evolutionary puzzle: they should increase embryo mortality in heterokaryotypic individuals but still they are widespread in some taxa. Some insect species have evolved mechanisms to reduce the cost of embryo mortalit
However, the causes of half of all satellite break-ups remain undetermined. The steady increase in the near-Earth space debris population raises legitimate concerns about the mounting probability of satellite-satellite collisions. The limitations of ground-based radars suggest that the true population ...
designstoassesscompliancewithdebrisstandardsandpolicieswhichlimitthegrowthofthedebrisenvironment.1.INTRODUCTIONOneoftheimportantusesofspacesurveillanceisunderstandingandmonitoringtheorbitaldebrisenvironment.Earthorbitingspacecrafthavebecomeanintegralpartofoureverydaylives.Wedependonthemforcommunications,weatherinformation,...
This race begins on the east side of the city near San Francisco Bay and ends on the west side at the Pacific ocean. In 1993 there were 80,000 people running in this race through the streets and hills of San Francisco. In the front are the serious runners who compete to win, and ...
“the year without a summer”. according to current theory, heat welling up from within the earth forces geologic movements of continents and triggers volcanoes. however the upwelling of heat from deep beneath us keeps earth alive. for one thing, wither would wear away the land. second, ...
Warmer air temperatures have driven ice loss, which has in turn raised land temperatures. That has caused the melting of permafrost, a frozen layer just beneath the Earth’s surface and found in much of the Arctic, and that melt releases planet-warming carbon dioxide a...