Author | Lightnews

Brian @drbwalsh.bsky.social · 19d

Power on! That small step function is the first power on in space of the COSSMo instrument from yesterday. The BU student-developed payload is on the Carruthers Geocoronal Observatory and will monitor the sun in UV and soft X-ray. #heliophysics

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Brian @drbwalsh.bsky.social · Aug 7

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

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Brian @drbwalsh.bsky.social · Jul 29

SMILE spacecraft passed through thermal testing. A nice video of the progress by the ESA team
www.youtube.com/embed/8soC68...

YouTube

www.youtube.com

Reposted by Brian

Leonard David @ldavid1129.bsky.social · Jul 25

'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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Brian @drbwalsh.bsky.social · Jul 24

This month marks 10 years teaching at @bostonu.bsky.social. It has been almost 1,000 energetic and curious Terrier students

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Brian @drbwalsh.bsky.social · Jun 27

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

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Brian @drbwalsh.bsky.social · Feb 16

LEXI made it to lunar orbit. 2 weeks to landing and X-ray imaging

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Brian @drbwalsh.bsky.social · Jan 27

One of the most exciting step-functions in electrical current I’ve seen. Lexi powering up successfully shortly after reaching orbit. ☀️

Brian @drbwalsh.bsky.social · Jan 15

And we’re up

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Brian @drbwalsh.bsky.social · Jan 14

T-8 hrs to launch. Weather in FL is looking good

Brian @drbwalsh.bsky.social · Jan 14

T-less than a day to LEXI’s launch on the Blue Ghost. Weather in Florida is looking good

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Brian @drbwalsh.bsky.social · Jan 10

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

Brian @drbwalsh.bsky.social · Jan 7

T-8 days to LEXI's launch blogs.nasa.gov/artemis/2025...

NASA Science, Tech Launching to Moon in Mid-January – Artemis

blogs.nasa.gov

Brian @drbwalsh.bsky.social · Jan 6

Quickly approaching launch. Excitement is growing to image Earth's magnetosphere from space
science.nasa.gov/science-rese...

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.

science.nasa.gov

Brian @drbwalsh.bsky.social · Dec 21

Regular special collection at BPL. Just need to make an appointment in advance for viewing. Lots of good treasures in there

others.to

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Brian @drbwalsh.bsky.social · Dec 20

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

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Brian @drbwalsh.bsky.social · Dec 13

SMILE is on the move! Always impressive the logistics that go into shipping spacecraft
youtu.be/7aJTuJPGYy8?...

Smile's other half arrives | Let’s Smile (action snippet)

YouTube video by ESA Space Science Hub

youtu.be

Brian @drbwalsh.bsky.social · Nov 27

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

Brian @drbwalsh.bsky.social · Nov 15

SMILE mission is coming together www.esa.int/ESA_Multimed...

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Brian @drbwalsh.bsky.social · Feb 27

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

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Brian @drbwalsh.bsky.social · Jan 4

We’ve had it in vacuum (~10-8torr). Not sure about exact outgassing measurements

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Brian @drbwalsh.bsky.social · Jan 4

The good people over at Nanolab have a similar product. We were happy in a vibe test.

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Brian @drbwalsh.bsky.social · Nov 30

Print(‘hello, world’)

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