Hubble

Category archives for Hubble

“So numerous are the objects which meet our view in the heavens, that we cannot imagine a point of space where some light would not strike the eye;—innumerable stars, thousands of double and multiple systems, clusters in one blaze with their tens of thousands of stars, and the nebulae amazing us by the strangeness of…

“Gamow was fantastic in his ideas. He was right, he was wrong. More often wrong than right. Always interesting; … and when his idea was not wrong it was not only right, it was new.” -Edward Teller Considering what we know about our Universe today, it’s hard to believe that just a century ago, Einstein’s…

Happy birthday, Edwin Hubble (Synopsis)

“Equipped with his five senses, man explores the universe around him and calls the adventure Science.” -Edwin Hubble Back in the 1920s, Einstein’s general relativity had just come out and gained acceptance, and a debate was raging over whether the spirals in the sky were within our own galaxy, or were entire galaxies unto themselves.…

“Gravitational and electromagnetic interactions are long-range interactions, meaning they act on objects no matter how far they are separated from each other.” -Francois Englert Want a recipe for seeing as far into the distant Universe as you can? Because of how distance and brightness are inversely related, you need to make the most of every…

“No matter how ‘normal’ people look, living ‘ordinary’ lives, everyone has a story to tell. And may be, just like you, everyone else is a misfit too.” –Sanhita Baruah Every century or so, possibly even more frequently, a supernova goes off somewhere in the Milky Way galaxy. While the explosion itself is only visible for a…

“Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save…

When it comes to the Universe, physicists say things like: it originated in a Big Bang, it’s isotropic (or the same in all directions), and it’s homogeneous (the same everywhere), save for the effects of cosmic evolution. In every direction we look, we see galaxies expanding away from us, with the expansion rate increasing the…

“Deep into that darkness peering, long I stood there, wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before.” –Edgar Allan Poe Thanks to the Hubble Space Telescope, we’ve learned for a certainty that the black abyss of empty space isn’t really so empty. Far beyond what we can perceive with our naked…

“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…

“No distance of place or lapse of time can lessen the friendship of those who are thoroughly persuaded of each other’s worth.” –Robert Southey You might think that, when it comes to finding the most distant objects in the Universe, all we need is a good telescope, to leave the shutter open, and wait. As…