Dark Energy

Category archives for Dark Energy

Ask Ethan #53: What is the Big Rip? (Synopsis)

“Why do people have to be this lonely? What’s the point of it all? Millions of people in this world, all of them yearning, looking to others to satisfy them, yet isolating themselves. Why? Was the earth put here just to nourish human loneliness?” -Haruki Murakami Of all the ways our Universe can end —…

“After all the ‘Universe’ is a hypothesis, like the atom, & must be allowed the freedom to have properties & to do things which would be contradictory & impossible for a finite material structure.” -Willem de Sitter Dark energy was one of the biggest surprises to come along in the past generation, from a scientific…

“It is always wise to look ahead, but difficult to look further than you can see.” -Winston Churchill There’s plenty to learn about, to see and to discover when we look out at the Universe today. From the leftover glow from the Big Bang in the microwave to the hundreds of billions of galaxies and…

The Disappearing Universe (Synopsis)

“I realise now that I wanted to disappear. To get so lost that nobody ever found me. To go so far away that I’d never be able to make my way home again. But I have no idea why.” -Jessica Warman When you think about the galaxies up there in the night sky, only visible…

“If you put yourself in a position where you have to stretch outside your comfort zone, then you are forced to expand your consciousness.” -Les Brown On the one hand, you’ve got gravitation, the most powerful force in the Universe, trying to attract all the matter in it together. If it had its way, not only…

Ask Ethan #24: Cheating Time and Space

“For the wise man looks into space and he knows there is no limited dimensions.” -Lao Tzu You know the deal: it’s the end of the week, so it’s time for another Ask Ethan! You’ve continued to send in your questions-and-suggestions, much to my delight, and I’m pleased to tell you that this week’s question…

“Some say the world will end in fire, Some say in ice. From what I’ve tasted of desire I hold with those who favor fire. But if it had to perish twice, I think I know enough of hate To say that for destruction ice Is also great And would suffice.” -Robert Frost Depending on…

“One sees qualities at a distance and defects at close range.” -Victor Hugo A couple of weeks ago we took a look at the most distant galaxy (so far) in the known Universe, a galaxy so far away that it takes exclusively infrared observations from our most power space telescopes (Hubble and Spitzer) in order…

What is dark energy?

“Because dark energy makes up about 70 percent of the content of the universe, it dominates over the matter content. That means dark energy will govern expansion and, ultimately, determine the fate of the universe.” -Eric Linder It’s been a while since we’ve spoken about dark energy, and we were just talking about Einstein’s greatest…

“Anyone who has never made a mistake has never tried anything new.” -Albert Einstein Back when Einstein first proposed his theory of General Relativity, his revolutionary picture of the Universe was met with a mix of curiosity, awe, and intense skepticism. It isn’t every day that your most cherished of all physical theories — the…