Astronomy

Category archives for Astronomy

“Life is a mirror and will reflect back to the thinker what he thinks into it.” -Ernest Holmes When you’ve got a gas cloud in space that emits light, it’s only for one of two reasons: Either it’s at high enough temperatures that its atoms are excited and it’s emitting its own light as the electrons…

“Don’t go around saying the world owes you a living. The world owes you nothing. It was here first.” –Mark Twain You probably think you know the eight planets pretty well, don’t you? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, in order, with the four rocky inner worlds circumscribed by the four gas…

Solar System Answers (Synopsis)

“Put two ships in the open sea, without wind or tide, and, at last, they will come together. Throw two planets into space, and they will fall one on the other. Place two enemies in the midst of a crowd, and they will inevitably meet; it is a fatality, a question of time; that is…

“Now, Venus is an extremely hostile environment, and as such presents a lot of challenges for a science fiction author who wants to create life there. However, as I began to research it more thoroughly, I found myself intrigued by the possibilities the world offers.” –Sarah Zettel Of all the worlds in our Solar System,…

“For my part I know nothing with any certainty, but the sight of the stars makes me dream.” –Vincent Van Gogh When we look out into the Universe, farther back to greater distances, we’re also looking back in time, farther and farther into the past. If we could look back far enough, close enough to…

“Hundreds or thousands of years from now, when people look back at our generation, they will remember us for being the first people who found the Earth-like worlds.” –Sara Seager Just a scant 25 years ago, we had never yet found and confirmed another planet orbiting a star other than our own. Fast forward to…

“The progress of science is strewn, like an ancient desert trail, with the bleached skeleton of discarded theories which once seemed to possess eternal life.” –Arthur Koestler For every galaxy out there, what we typically see — the stars — is only representative of a tiny fraction, maybe 2%, of all the mass that’s present…

“Scientific ideas should be simple, explanatory, predictive. The inflationary multiverse as currently understood appears to have none of those properties.” –Paul Steinhardt, 2014 Cosmic inflation is alternately talked about by serious scientists as either the definitive beginning to our Universe, the thing that happened before and set up the Big Bang with absolute certainty, or…

“People get cranky when you burst their bubble. Over time, advances in astronomy have relentlessly reinforced the utter insignificance of Earth on a celestial scale.” –Nathan Myhrvold When new stars form from a collapsing molecular cloud, the hottest, bluest, brightest stars emit high-energy ultraviolet radiation. This evaporates, ionizes and pushes the gas outwards, creating a bubble…

“The wonder is, not that the field of the stars is so vast, but that man has measured it.” –Anatole France Wherever large, dense collections of cool gas gather together under the force of their own gravity, new stars are bound to form. Every galaxy goes through peaks and lulls in star formation, yet at…