They were chanting "Science! Science! Science!" and "NASA! NASA! NASA!" in Times Square last night, as the Curiosity rover touched down on Mars at about 1:30 am Eastern time.
The best parts are yet to come. As chemistry professor and blogger Matthew Hartings pointed out this morning, Curiosity is, fundamentally, a chemistry project. Curiosity will search for the chemical building blocks of life, it will study the make-up of the soil and atmosphere, it will look at planetary water cycles and the effects of cosmic radiation. The long-range goal, as you've probably picked up by now, is to put human beings on Mars—maybe by as soon as the 2030s. Curiosity is the chemistry that will help make that very ambitious sort of awesome possible.
We'll be staying tuned for cool stuff coming in from Curiosity. In the meantime, I wanted to point you toward some swell videos, photos, jokes, and essays that have turned up in the last nine hours.
First off, if you slept through the event or just want to relive the excitement, the video above captures the five minutes before and five minutes after Curiosity made landing. The actual touchdown happens about at about mark 5:30, and the first images come through at 7:30.
And, speaking of images ... Read the rest
Back in December, I told you that physicists at CERN thought that by this summer they might be able to say, once and for all, whether the Higgs Boson particle exists. As a quick reminder, here's how I described that particle in a post from last year:
You know that reality is like a Lego model, it's made up of smaller parts. We are pieced together out of atoms. Atoms are made from protons, neutrons, and electrons. Protons and neutrons are made of quarks. (Quarks and electrons, as far as we know, are elementary particles, with nothing smaller inside.) When you're talking about the Higgs Boson, you're talking about the mass of these particles. Here's an imperfect analogy: A top quark, the most massive particle we know of, is like an elephant. An electron, on the other hand, is more like a mouse. And nobody knows for certain why those differences exist.
There is a theory, though. Back in the 1960s, a guy named Peter Higgs came up with the idea that all these particles exist in a field, and their mass is a reflection of how much they interact with that field. Heavy particles have a lot of interaction. Lighter particles are relatively standoffish. If this field exists, the Higgs Boson is the tiny thing it's made of.
So that's the Higgs Boson—what it (theoretically) is and why that matters. And now, scientists at CERN are saying that they might have found it. What's that mean? Basically, they found a new sub-atomic particle that seems to fit the theoretical description of what a Higgs Boson should be like. Read the rest