Dark Matter

Tag archives for Dark Matter

Will the LHC Create Dark Matter?

Hector writes in and asks about someone from Sheffield in the UK who says that the Large Hadron Collider (LHC) will create Dark Matter: The massive ATLAS detector will measure the debris from collisions occurring in the Large Hadron Collider (LHC) which recreates the conditions found in the early universe during the Big Bang when…

Ethan takes on Johannes Kepler

Can you believe that I had a fight today with someone who’s been dead for over 350 years, and I’m losing? — Ethan, yesterday Of course you can believe it, when the man I’m fighting with is Johannes Kepler. I don’t get a chance to tell you about my research very often, mostly because it’s…

DAMA is at it Again!

Remember how I told you earlier this week that DAMA was going to announce that they found dark matter, even though the signal that they found is not consistent with other experiments? Looks like my powers of predicting the future are pretty damned good. They have a new plot with more data showing the continued…

Dark Matter: Anything Practical About It?

Yesterday, my good friend (and SWAB reader) Brian wrote a great comment about the practical reasons to explore space, where he talked about the overall economic impact that Space Exploration has had on the economy, as well as the impact it has had on our knowledge and understanding of the Earth, its environment, and how…

Future News: DAMA discovers Dark Matter?!

The DAMA collaboration, an experimental team searching for dark matter via direct detection, is poised to report this week that they have discovered Dark Matter. And I’m here to pre-empt that by bringing you the truth: no, they haven’t. They take some very cold (cryogenic) atoms, look for nuclear recoils resulting from dark matter collisions,…

Somethin’ Neat about our Galaxy

So last week I was up at Pacific University in Portland, OR for a job interview. As part of a faculty interview, you have to lecture on a topic for undergraduates, but they give you the topic just a couple of days before. My topic was Gauss’ Law, which talks about the relationship between an…

Afraid of the Dark?

So I gave a public lecture last (Monday) night called, “Afraid of the Dark: How We Know What We Can’t See” and videotaped it. Now, I’m pretty good at what I’m doing right now (research in theoretical cosmology), but I’m really good at public speaking and teaching, and here is me telling a public audience…

Why we need Dark Matter in the Universe.

Last week, Pamela Gay over at Star Stryder pointed me to a press release which claimed that, among other things, perhaps dark matter wasn’t necessary. So I wrote a guest post on her blog explaining why it was. Apparently, some people still aren’t convinced. So I will lay out for you all the reasons I…

Great things await you online…

Three awesome things are going on today for you, and I invite you to check them all out: The latest Carnival of Space is live, where you have your choice of 23 different astronomical topics to choose from. Of course, my post this week on galaxies and how they’re made is on there, too! Pamela…

What if I were made of Dark Matter?

I’ve been talking about dark matter a lot, and yet there’s still so much to explain about it. For example, dark matter and normal matter (protons, neutrons, and electrons) have a few things in common: They both have mass. They both feel the effects of gravity. They both cause their own gravity. But that’s where…