Latest / page 4

When it comes to the definition of “genius,” everything is relative, right? When a particularly bright young person performs an amazing feat of intellect or scores incredibly well on a standardized test like an IQ exam or the SAT, we often herald them with excessive praise, calling them “the next Einstein” or even “smarter than…

“That, then, is loveliness, we said, Children in wonder watching the stars, Is the aim and the end. Being but men, we walked into the trees.” –Dylan Thomas Yet when you look at the night sky, it isn’t watching the stars that reveals all of the Universe’s secrets, nor by looking with what you can…

“Your problem is to bridge the gap which exists between where you are now and the goal you intend to reach.” –Earl Nightingale When you think about the obstacles facing us in the world today, it’s easy to look to advances in technology as the panacea. If there are waterways that need crossing, you’ll build…

“It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn’t feel like a giant. I felt very, very small.” -Neil Armstrong This past week saw a whole lot of interesting things happen, including…

“Youth is the gift of nature, but age is a work of art.” –Stanislaw Jerzy Lec You’ve heard it said many times here: the Universe, since the Big Bang, is 13.8 billion years old. But how do we know this to be true? Moreover, how many different lines of evidence do we have that leads…

“To be is to be the value of a variable.” –Willard Van Orman Quine Those constant, fixed points of light in the night sky — the stars — turn out not to be so constant if you looked with great precision at them. A star like our Sun varies in brightness, periodically, by about 0.1% over the…

“A cosmic mystery of immense proportions, once seemingly on the verge of solution, has deepened and left astronomers and astrophysicists more baffled than ever. The crux… is that the vast majority of mass of the universe seems to be missing.” –William J. Broad When we look out at the Universe, the other things we see…

When it comes to dark matter, the mysterious substance that makes up the vast majority of the mass in the Universe, there’s a whole lot we don’t understand or know about it. You might think that there are so many unknowns that are so huge that — quite reasonably — perhaps it doesn’t exist at all,…

When you close your eyes and picture a galaxy, what pops into your mind? For most people, it’s a beautiful, spiral shape, where a bright central region fans out with arms that wind around and around, over and over, littered with brilliant, glittering stars. And in almost all the pictures you see, there are two…

“Our knowledge of stars and interstellar matter must be based primarily on the electromagnetic radiation which reaches us. Nature has thoughtfully provided us with a universe in which radiant energy of almost all wave lengths travels in straight lines over enormous distances with usually rather negligible absorption.” –Lyman Spitzer, Jr. There’s nothing quite like looking…