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Planck results: our weird and wonderful Universe
The cosmic pie, before and after Planck. The size of the slices changed a little bit, but it’s barely noticeable. [Credit: ESA/Planck Collaboration]The big news today is that our Universe is a little...
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Will we ever know what happened before the Big Bang?
(This piece originally appeared in the “Will We Ever?” column at BBC Future. I added some commentary at the end and changed the accompanying image, but otherwise left everything the same, including UK...
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How I learned to stop worrying and tolerate the multiverse
The evil mirror-universe Mr. Spock, from the original Star Trek series episode “Mirror, Mirror”. The beard is obviously a sign of his evilness, which means somewhere in a parallel universe there’s a...
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A quick note about today’s Big Cosmology Announcement
UPDATE: My big article about the BICEP2 results is up at Ars Technica, so you should probably read that instead of this post. Rumors have percolated throughout the cosmology community, surrounding...
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Podcast: a few contrarian thoughts about BICEP2
I didn’t record this podcast in front of a backdrop of the cosmic microwave background, but if you think it’s cooler, you can pretend I did. [Credit: Tony Hitchcock]Sometimes when you’re too busy, the...
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What happened in the first instants after the Big Bang?
The BICEP2 telescope at the South Pole, designed to look for polarization of light that could be the sign of inflation. [Credit: Steffen Richter]One of the biggest science stories of 2014 came out of...
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Everything you wanted to know about inflation, but were afraid to ask
Cosmology observatory at the South Pole, including the South Pole Telescope (SPT) on the left and BICEP2 on the right. [Credit: Stephen Hoover/University of Chicago]Well, my upcoming class is unlikely...
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Some thoughts on BICEP2 and dust
[ Quick advertisement: my newest online class, “Gravity and Orbits”, starts a week from today. Sign up now, and please tell your friends! ] Colorful visualization of Planck data in the region of...
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