Citizen of the Universe

A place to illustrate/discuss/highlight the role of the engineer in the world. (And a place to espouse thoughts on life.)


A huge comet almost hit Mars … and then missed. It passed just 87,000 miles from the martian surface. That might seem far away, but remember our moon is about 240,000 miles from Earth’s surface. 

As astronomer Phil Plait, who writes the Bad Astronomy blog for Slate, notes:

The NASA comet page says the coma (the big fuzzy cloud of gas surrounding the solid nucleus of the comet) is about 20,000 km across. At closest approach, that means that if you were standing on Mars, the comet would appear to be over 8° across! That means that if you have a big hand, you could just barely block it with your upraised fist.

Again — our Moon appears only about 0.5°. This was huge.

And human probes orbiting mars had a front row seat. They recorded the comet’s approach, and then quickly swung around behind Mars to avoid potentially harmful debris in the comet’s tail. The data from their close encounter will be trickling in over the next couple weeks.

Nature and Science are amazing!

(via npr)

— 22 hours ago with 750 notes
#comet  #Mars  #close encounter 


Decided to make a handy graphic after seeing a lot of misinformation spread around tumblr. Current science isn’t perfect and definitions are bound to change, but I wanted to push back against the hostile attitude against it because it seems like a lot of people are being hostile for the wrong reasons.

Please let me know if there are any factual errors, thank you :)

Could not have said it better AND a great example of a cohesive thesis and critical thinking.  You should try it.

(via scienceetfiction)

— 1 week ago with 39667 notes
#Pluto  #Planet status 
Tour Route and Map | City Sightseeing New Orleans →

Always take the hop-off/hop-on tour first so that you know where things are.  In New Orleans do this first, get the 3-day ticket and may never have to hire a cab.

— 1 week ago with 1 note
#New Orleans tourist 
New Orleans Hotel, Luxury French Quarter Hotel - Hotel Monteleone →

A place to stay in New Orleans.  IN the French Quarter.

New Orleans is a walking city with three separate street car lines, double-decker buses ad pedi-cabs.

— 1 week ago
#New Orleans tourist 

Yes, I am up to 40 followers.


— 2 weeks ago with 1 note
#numbers  #followers 
A metaphor about K-12 education
— 2 weeks ago