Brian
@drbwalsh.bsky.social
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📥 59
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Space science explorer and professor at Boston University. Space sensor builder
A small experiment - over the past 2 months I saved all the junk mail I received, ~7.1 lbs. Projecting to the number of adults in the US, that’s 813 million pounds of unsolicited mail every month in the US
about 2 months ago
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SMILE spacecraft passed through thermal testing. A nice video of the progress by the ESA team
www.youtube.com/embed/8soC68...
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YouTube
https://www.youtube.com/embed/8soC68zRNC8?rel=0
2 months ago
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reposted by
Brian
Leonard David
2 months ago
'NASA is under attack.' Space agency employees and lawmakers protest mass layoffs, science cuts amid budget turmoil - They're telling everyone to 'jump ship.'" By Josh Dinner at
Space.com
Go to:
www.space.com/space-explor...
Image credit: Josh Dinner
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This month marks 10 years teaching at
@bostonu.bsky.social
. It has been almost 1,000 energetic and curious Terrier students
2 months ago
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Motivating to be part of 450 US space scientists in Des Moines this week. My favorite line of the workshop “whether they know it or not, everyone in this country is becoming a space worker” in reference to the growing reliance of daily life on the space environment
3 months ago
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LEXI made it to lunar orbit. 2 weeks to landing and X-ray imaging
8 months ago
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One of the most exciting step-functions in electrical current I’ve seen. Lexi powering up successfully shortly after reaching orbit. ☀️
8 months ago
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And we’re up
9 months ago
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T-8 hrs to launch. Weather in FL is looking good
9 months ago
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T-less than a day to LEXI’s launch on the Blue Ghost. Weather in Florida is looking good
9 months ago
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In 1651 if you wanted to bash someone’s idea you wrote a book with a gorgeous art critique. It looks like Riccioli didnt like geocentrism If there’s room you could also include one of the first maps of the moon defining many of the names we use today. Thanks to
#bostonpubliclibrary
for sharing
9 months ago
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T-8 days to LEXI's launch
blogs.nasa.gov/artemis/2025...
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NASA Science, Tech Launching to Moon in Mid-January – Artemis
https://blogs.nasa.gov/artemis/2025/01/07/nasa-science-tech-launching-to-moon-in-mid-january/
9 months ago
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Quickly approaching launch. Excitement is growing to image Earth's magnetosphere from space
science.nasa.gov/science-rese...
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NASA’s LEXI Will Provide X-Ray Vision of Earth’s Magnetosphere - NASA Science
A NASA X-ray imager is heading to the Moon as part of NASA's Artemis campaign, where it will capture the first global images of the magnetic field that shields Earth from solar radiation.
https://science.nasa.gov/science-research/heliophysics/nasas-lexi-will-provide-x-ray-vision-of-earths-magnetosphere/
9 months ago
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de Magnete (1600) by Gilbert started magnetospheric physics. Earth is a magnet! When this was written this also resolved a debate of why compasses pointed north. Thanks to BPL Special Collections for sharing an original copy.
#heliophysics
10 months ago
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SMILE is on the move! Always impressive the logistics that go into shipping spacecraft
youtu.be/7aJTuJPGYy8?...
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Smile's other half arrives | Let’s Smile (action snippet)
YouTube video by ESA Space Science Hub
https://youtu.be/7aJTuJPGYy8?feature=shared
10 months ago
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Two months out from launch! LEXI’s science mission ends when the sun and Earth are too close in the sky to image earths magnetic field without solar background. From LEXI and the moon, this is “new Earth.” From Earth’s perspective - a full moon. Graphic from
@firefly-aerospace.bsky.social
10 months ago
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SMILE mission is coming together
www.esa.int/ESA_Multimed...
11 months ago
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Back to Helsinki with the Vlasiator team for more sabbatical numerical simulations. I’ve been told February is still the “dark” part of the year here
over 1 year ago
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Print(‘hello, world’)
almost 2 years ago
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you reached the end!!
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