May 9th, 2008

galaxy M51

Astro-Image of the Day: Glimpsing the Veil that Touches Us All

Astronomers are still looking for the elusive dark matter - even though it makes up more than 90% of the universe. So you'd think they'd have a good grasp of baryonic matter, otherwise known as normal matter - including human beings. I guess that's not a surprise, that we don't fully understand human beings, including ourselves. Just ask anyone. But I digress.

So it's a big deal when scientists discovered a gauzy haze of nearly invisible baryonic matter enveloping two clusters of galaxies.

Click the image to see the story.

Aurora Simionescu of the Max Planck Institute for Extraterrestrial Physics said, "So far, we could only see the clusters, the dense knots of the web. Now, we are starting to see the connecting wires of the immense cosmic spider web."

Cool beans.