Sam Christian

MIT Undergrad

[Sam Christian @SamChristian27]

forgot to post about this because I don't use twitter much anymore but we published a new paper! Thanks to my excellent mentor @amvanderburg for invaluable guidance throughout the many year endeavor.

[Andrew Vanderburg @amvanderburg]

Check out this awesome new paper from superstar MIT @urop_mit student Sam Christian (@SamChristian27) about the orientation of binary stars with respect to planets in the system: https://t.co/ydu6yVPqUa

[Sam Christian @SamChristian27]

One of the worst written pieces of science journalism I've read (from 1919):

"Lights All Askew in the Heavens" -- The New York Times

https://t.co/BZu5KGJGiS

[Sam Christian @SamChristian27]

"A Fearful Asymmetry: Covid-19 and America’s Information Deficit with China"
https://t.co/xSHQbwCH3p

[President Biden Archived @POTUS46Archive]

Taking it all in.

[Hubble @NASAHubble]

@NASAUniverse @NASAWebb @NASARoman We're thankful for TESS, also known as the @NASAExoplanets hunter, for working with us to show that there are worlds outside our solar system: https://t.co/tPhMWfja6F

Find out more: https://t.co/u4N5QZjmmj

#Friendsgiving

[NASA @NASA]

New views of planet Earth from @NASA_Orion as #Artemis I journeys to the Moon. Orion is 9.5 hours into a 25.5-day test flight.

[Jay Cummings @LongFormMath]

The engineering The math
building on building on
ever single every single
campus campus

[Analysis Fact @AnalysisFact]

“In virtually every decade from 1650 to the present there have appeared papers devoted to the Kepler problem and its solution.” — Peter Colwell

[ARCHIVED NASA Exoplanets @NASAExoplanets]

Mission update: TESS entered into safe mode on Monday, Oct. 10. Recovery measures are underway to resume #TESS normal operations: https://t.co/SN70PjLUNc

[NASA @NASA]

Don't want to miss a thing? Watch the final moments from the #DARTMission on its collision course with asteroid Dimporphos.

[The Onion @TheOnion]

NASA Delays Artemis Launch After Rocket Gets Scared https://t.co/9BNtSAVAL9

[Sam Christian @SamChristian27]

How Kepler's equation was solved before computers. Connect a ruler between two quantities, get the third.

From "A first course in nomography" (Brodetsky 1920)

[Sam Christian @SamChristian27]

@acdrazen @UMontreal Normal. Orbiting one star in a binary star system is the more common scenario for exoplanets (generally more stable)

[Sam Christian @SamChristian27]

Very simple, but important, lesson in mcmc fitting I just learned:

When you have an angle variable, sample the x and y component of a unit vector then use arctan to transform .

This allows the sampler to wrap from 360 to 0 degrees.

[Sam Christian @SamChristian27]

Just putting this on Twitter because I have seen a lot of code (mine too!) that hasn't done this...

[Sam Christian @SamChristian27]

Very simple, but important, lesson in mcmc fitting I just learned:

When you have an angle variable, sample the x and y component of a unit vector then use arctan to transform .

This allows the sampler to wrap from 360 to 0 degrees.

[The Associated Press @AP]

Several passengers climbed out of windows when a Boston-area public transit train caught fire during the Thursday morning commute, officials said.

The fire is the latest in a string of dangerous problems with the troubled system. https://t.co/MODZ7koCIJ

[NASA Astronomy Picture of the Day @apod]

Stephans Quintet from Webb, Hubble, and Subaru: https://t.co/LTi0N1yxK7

[Ethan Kruse @ethan_kruse]

Ok, JWST is cool and all, but let's not forget all the OTHER space telescopes. For instance, @TESSatMIT can observe Stephan's Quintet too! Look!
*insert Pam "they're the same image" meme*
I dare you to tell me which is which.

[Sam Christian @SamChristian27]

DALL-E creation

prompt: "Dutch golden age portrait painting of a cat wearing a hat"