Dark Energy

Category archives for Dark Energy

The Universe Beyond Our Reach

“People hear the happy story, but the truth is they could all disappear in the blink of an eye. The threats just keep coming.” -Todd Steiner It’s taken generations of scientists, examining the night sky for millennia, to comprehend the full size and scope of what’s out there in the Universe. Out beyond the planets and…

Messier Monday: Bode’s Galaxy, M81

“When you look at the stars and the galaxy, you feel that you are not just from any particular piece of land, but from the solar system.” -Kalpana Chawla Welcome to this week’s Messier Monday, where I pick a new object out of the original catalogue of 110 “faint fuzzies” designed to help comet-hunters avoid…

“Other than the laws of physics, rules have never really worked out for me.” -Craig Ferguson Earlier this week, evidence was presented measuring a very rare decay rate — albeit not incredibly precisely — which point towards the Standard Model being it as far as new particles accessible to colliders (such as the LHC) go.…

Where do Type Ia Supernovae come from?

“You have to have a canon so the next generation can come along and explode it.” -Henry Louis Gates When it comes to stars, their fates are very well known. Every single star that’s massive enough to fuse hydrogen into helium in its core will someday run out of fuel and die. The very brightest…

The Halloween Horror of the Dark Universe!

“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 the mass of the universe seems to be missing.” -William J. Broad Despite the wondrous, luminous sights of the night sky, we’ve…

Where will we all be in 100 billion years?

“It is always wise to look ahead, but difficult to look further than you can see.” -Winston Churchill We’ve come a long way in this Universe. Over the past 13.7 billion years, we’ve formed the light elements out of a sea of protons and neutrons, cooled and expanded to form neutral atoms for the first…

“Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.” -Carl Sagan Our night sky, quite literally, is our window to the Universe. Well, it’s kind of a…

“Nothing exists except atoms and empty space; everything else is just opinion.” -Democritus of Abdera When you take a look out at the Universe, past the objects in our own solar system, beyond the stars, dust and nebulae within our own galaxy, and out into the void of intergalactic space, what is it that you see? What…

This is an enhanced version (with some upgraded images and text) of an article I first wrote over two years ago. It is just as valid today as it was back then, only today, I have a special offer to go with it. Next week, a bunch of cosmologists and myself are getting together and…

How Big is the Entire Universe?

“The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.” -Stephen Hawking The Universe is a vast, seemingly unending marvel of existence. Over the past century, we’ve learned that the Universe stretches out beyond the billions of stars in our Milky Way, out across billions of light years, containing close to…