Astronomy

Category archives for Astronomy

“Mars is much closer to the characteristics of Earth. It has a fall, winter, summer and spring. North Pole, South Pole, mountains and lots of ice. No one is going to live on Venus; no one is going to live on Jupiter.” -Buzz Aldrin When a planet passes in front of its star from our…

“You’re on Earth. There’s no cure for that.” -Samuel Beckett In 2012, astronomers announced that the nearest star system to us, the Alpha Centauri system, possessed at least one exoplanet around it. A periodic signal that recurred just every 3.24 days was consistent with an Earth-sized exoplanet orbiting and gravitationally tugging on the second largest…

“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 One of the most spectacular predictions of Einstein’s General Relativity was the existence of gravitational lensing, whereby a large foreground mass could act as a lens, magnifying and distorting the background…

“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…

“You cannot rob me of free nature’s grace, You cannot shut the windows of the sky Through which Aurora shows her brightening face.” -James Thomson When the Sun emits a flare or a mass ejection in the direction of Earth, these fast moving particles are when Earth’s magnetosphere and atmosphere are of the utmost importance for…

“I know there is strength in the differences between us. I know there is comfort where we overlap.” -Ani DiFranco The observable Universe is a big, big place. Some 46 billion light years in all directions, with hundreds of billions of galaxies inside, it’s no wonder that we see stars and galaxies in all directions…

“This whole Santa Claus thing just doesn’t make sense. Why all the secrecy? Why all the mystery? If the guy exists why doesn’t he ever show himself and prove it? And if he doesn’t exist what’s the meaning of all this?” -Calvin, via Bill Watterson This is our last comments of the week for 2015,…

“If the expansion of the space of the universe is uniform in all directions, an observer located in anyone of the galaxies will see all other galaxies running away from him at velocities proportional to their distances from the observer.” -George Gamow When Einstein put forth his space-and-time changing theory of General Relativity, one of…

“For me, the study of these laws is inseparable from a love of Nature in all its manifestations.” – Murray Gell-Mann When you take a glimpse into the deep Universe, beyond the gas, dust, stars and planets of our own galaxy, you enter the realm of the galaxies. In general, they come in two types:…

“Youth is the gift of nature, but age is a work of art.” -Stanislaw Jerzy Lec When stars are born, it normally happens in groups of thousands or more, all at once. They range from just 8% the mass of our Sun, which are dim, red, and long-lived, to dozens or even hundreds of times…