Category Archives: Science

Days 3 and 4 at the #AAS230: Galaxies, Supernovae, and Space Weather

The famous Crab Nebula supernova remnant. The AAS Conference has concluded, but there’s still a lot of exciting science going on. Here are the big stories from the final day and a half. Sadly, I missed the first talk on … Continue reading

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Day 2 at the #AAS230: Warm Jupiters, Human Spaceflight, and Other Stories

Artist’s rendition of the mysterious Planet Nine. The second day of the AAS Conference has concluded with still more fascinating tales from the world of astronomy. We begin with the tale of the Rosetta mission to Comet 67P/Churyumov-Gerasimenko, which concluded … Continue reading

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Day 1 at the #AAS230: Dark Matter, Colliding Planets, and More

The famous Bullet Cluster, the first clear proof of dark matter. The AAS Conference is underway today with the first round of talks from all branches of astronomy. For us astronomers, the biggest events are probably the plenary sessions, where … Continue reading

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Blogging the #AAS230

As you may already know, I’m a professional astrophysicist, and for astrophysicists, the biggest event of the year is the biannual conference of the American Astronomical Society, usually known as the AAS (that’s “Double-A-S” for you non-astronomers). Now, the winter … Continue reading

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Gravitational Waves Found at Last

One hundred years ago, Albert Einstein published his theory of general relativity. It was a radical new idea that overturned Newton’s theory of gravity and said things got much more complicated when you were near a massive object. Strange as … Continue reading

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Planet 9 Follow-Up

Where it is, where it came from, and why there’s a chance it’s not there at all. Last week, I wrote about the not-quite-discovery of a ninth planet in our Solar System (and I don’t mean Pluto), way, way beyond … Continue reading

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Planet 9: A New Planet in Our Solar System?

“In my day, Pluto was a Planet!” said everyone over the age of…15 or so. Pluto was demoted from planet status ten years ago (a decision I do agree with–see here), and now we only have eight planets–or do we? … Continue reading

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