Ketofast Ketofast

ADVERTISEMENT

Dark Matter and Dark Energy

Everything we're made of or can measure - from atoms to energy - is only 4 percent of the whole shebang. The rest is dark matter (about 23 percent) and, best of all, dark energy (73 percent). How do we know this? We can thank the Wilkinson Microwave Anisotropy Probe. This superb gizmo, launched in June 2001, is floating 1 million miles from Earth in the second Lagrange Point, measuring the density of the universe with unheard-of digital accuracy. What will we make of our new knowledge? Are there political implications to the idea that most of the universe is untouchable, endlessly expanding, scarcely knowable?

Wired November 2003

Click Here and be the first to comment on this article
Post your comment