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Brian Grefenstette
Works at California Institute of Technology
Attended Stanford University
12,556 followers|457,384 views
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Brian Grefenstette

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How I make pour over.

A little demo for how I make pour over coffee.
A little demo for how I make pour over coffee.
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Reducing Infinites, a status update

It’s been about 11 months since I started my cleaning experiment to try to reduce the “get to the end of the feed” mentality when consuming content. I figured it was time for an update.
It’s been about 11 months since I started my cleaning experiment to try to reduce the “get to the end of the feed” mentality when consuming content. I figured it was time for an u…
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Okay, now this is pretty awesome…notice all of the big planets in this poster? There’s a good reason for that.
Okay, now this is pretty awesome…notice all of the big planets in this poster? There’s a good reason for that.
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New solar observations. NuSTAR's first look at a full-Sun mosaic.
X-rays light up the surface of our sun in a bouquet of colors in this new image containing data from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR.
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Lights of an Aurora | International Space Station | NASA
June 24, 2015: Aurora in green and red from International Space Station. NASA Astronaut Scott Kelly captured this photo of an aurora from the International Space Station on June 23, 2015. The dancing lights of the aurora provide spectacular views on the ground, but also capture the imagination of scientists who study incoming energy and particles from the sun. Aurora are one effect of such energetic particles, which can speed out from the sun both in a steady stream called the solar wind and due to giant eruptions known as coronal mass ejections or CMEs.

Credit: NASA/JSC, U.S. Astronaut Scott Kelly
Date: June 23, 2015

+Scott Kelly 
+NASA Johnson Space Center 
+Canadian Space Agency 
 
#NASA #Space #ISS #Earth #Aurora #Astronaut #ScottKelly
#Spacecraft #YearInSpace #Expedition44 #USA #UnitedStates
#Photography #Art #Science #STEM #Education #JourneytoMars #UnitedStates #Photography #Canadarm2 #Canada #CSA 
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Have him in circles
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Brian Grefenstette

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There’s been some interesting policy commentary on the NASA budget going around today since the budget came out of committee. There’s a bit more going on here than just “Woo! NASA got funded for next year!”.
There’s been some interesting policy commentary on the NASA budget going around today since the budget came out of committee. There’s a bit more going on here than just “Woo! NASA…
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    NASA is currently recruiting a new astronaut corps. I decided to dig into this a little bit (shocking, I know).
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Sitting in a can drifting in nothingness, towards places that are deadly, while taking resources from starving diseased abused neglected people, and for no reason at all beyond ego and emotional escapism? No thanks.
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It’s been a fun year seeing what the scientific community has been doing with NuSTAR. This is from a science group that triggered a Target of Opportunity (ToO), which is basically what happens when something cool goes bump in the night that we either…
It’s been a fun year seeing what the scientific community has been doing with NuSTAR. This is from a science group that triggered a Target of Opportunity (ToO), which is basically what happen…
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Another way of being part of something awesome. 41 hours to go at this point.
Bill Nye, CEO, The Planetary Society is raising funds for LightSail: A Revolutionary Solar Sailing Spacecraft on Kickstarter! Unlimited free energy from the sun will provide CubeSat propulsion and revolutionize access to space for low-cost citizen projects.
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Acceloration profile model and data???
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Earth is experiencing an ongoing geomagnetic storm that started on June 22 due to the arrival of an Earth-directed coronal mass ejection, or CME, from a minor solar flare on June 20. As a result, aurora were sighted in several mid-latitude locations, including Virginia, in the United States and in the United Kingdom. Details: http://go.nasa.gov/1LBSkKx
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The solar storm of June 22, 2015, produced striking auroral displays in New Hampshire.
The solar storm of June 22, 2015, produced striking auroral displays in New Hampshire.
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Have him in circles
12,556 people
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Work
Occupation
Scientist
Employment
  • California Institute of Technology
    Staff Scientist, 2012 - present
    I'm a principle mission scientist on a NASA Small Explorer mission, the Nuclear Spectroscopic Telescope ARray (NuSTAR), the world's first focusing hard X-ray telescope. I "do science" (I mostly study supernova remnants like Cassiopeia A) now that NuSTAR is up in space, but I also help to develop and maintain the software down here on the ground that turns the bits and bytes coming down from NuSTAR into pictures and spectra.
  • California Institute of Technology
    Postdoc, 2008 - 2012
  • University of California, Santa Cruz
    Research Assistant, 2004 - 2008
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Male
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Married
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  • WordPress
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Tagline
Science at it's prettiest.
Education
  • Stanford University
    Physics, 2000 - 2004
  • University of California, Santa Cruz
    Physics, 2004 - 2008
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