By Sten Odenwald
How briskly does gravity trip? whilst will the sunlight move nova? Who invented the sunshine 12 months? can we ever trip to the celebs? those are only a number of the strange and renowned questions NASA astronomer Sten Odenwald solutions in again to the Astronomy Caf?, in keeping with his award-winning site "for the astronomically disadvantaged." because his acclaimed past ebook The Astronomy Caf? released in 1998, the distance group has been became on its head with completely new discoveries: ion propulsion, darkish topic, gravity and magnetic reversals, the Cosmic darkish a while, and over a hundred new planets. within the all-new again to the Astronomy Caf?, Odenwald solutions the newest and most-asked questions in terms of those fresh discoveries. His hugely own and authoritative type makes knowing the cosmos much less intimidating, intriguing, and fun.Since he opened his site "The Astronomy Caf?" in 1995, Odenwald has responded over 50,000 e-mailed questions. His person solutions were downloaded over 7.5 million instances, making him the main sought-after "answer guy" for astronomy in human background.
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Extra resources for Back to the Astronomy Cafe
Without a big moon and the climate stability it brings, life can't evolve. Of course, we still have organisms that have adapted themselves to enormous extremes of temperatures, so perhaps life is more resilient than we think. 62 Are there any alternative theories about what causes the seasons? This is a harder question to answer than you might suspect. The current explanation, having to do with Earth's axis tilt and changing sunlight angles through the year, has so thoroughly replaced any older ideas that you have to literally go back several thousand years before you begin to find traces of older The Earth and Moon-Our Cosmic Home 43 ideas.
I would drive to stores along the way and stock up on basic supplies like bottled water, and I would bring my survival/camping gear with me. Our first stop would be in western Massachusetts to check up on my mother-in-law and family, then we would continue northwards with plenty of cash. My reasoning would be that it may be more likely for regions where the ecliptic plane rises high over head to be hit than places far from this zone because asteroid orbits tend to follow the ecliptic plane of the solar system.
Without the Moon, the gravitational torques from the Sun and other planets would cause the axis to wander and tip to extreme angles, even 90 degrees so that for a time it would roll on its side like Venus or Uranus. The fortuitous presence of the Moon so large and close has been argued by some scientists to indicate that the conditions for life elsewhere are rare. Without a big moon and the climate stability it brings, life can't evolve. Of course, we still have organisms that have adapted themselves to enormous extremes of temperatures, so perhaps life is more resilient than we think.