Reposted by BrianProf. Dr. Dan guy -issimo. @spacecataz1663.bsky.social · 02/06/2026Big space weather news! Our work on assessing the feasibility of artificially stopping major space weather events has been published! Science magazine has released a news article on it! #spaceweather #aurora www.science.org/content/arti...science.orgRadical proposal would block solar storms with orbital ‘airbag’Gases released from satellites could slash the threat of severe space weather 245
Reposted by BrianSocializing with Scientists @socwithsci.bsky.social · 19/03/2026🎧 New episode out now, with space physicist Brian Walsh! Brian put a telescope on the moon to look back at the space around Earth, and he has come up with a clever way to protect us from geomagnetic storms. @drbwalsh.bsky.social #solarwind #geomagneticstorm www.buzzsprout.com/2464891/epis...buzzsprout.comBrian Walsh peers at Earth from the moon (he's a space physicist) - Socializing with ScientistsTo prepare for the moment his telescope landed on the moon, Brian read sports psychology books. "You're not going to read Kepler or Isaac Newton [to learn] about how to deal with high pressure situati... 012
Brian @drbwalsh.bsky.social · 20/02/2026The SMILE mission’s boat journey has begun - www.esa.int/Science_Expl... (Interestingly, the boat ride distance ~7,500km is much further than the distance from Earth to low earth orbit ~400km) #heliophysicsesa.intSmile sets sail for Europe’s Spaceport in French GuianaJust over a year since Smile arrived in the Netherlands in two parts, the now-complete and thoroughly-tested spacecraft has left for good. With a launch window set for 8 April – 7 May on a Vega-C rock... 130
Brian @drbwalsh.bsky.social · 26/01/2026Thanks to you and the team. A great contribution to the community! It’s a hard problem, but a big gap is moving from things like this to financial losses 110
Brian @drbwalsh.bsky.social · 03/01/2026Happy Periapsis Day to those that celebrate! Earth is at periapsis in its orbit around the sun. The closest point between Earth-sun in the year-long orbit. 010
Brian @drbwalsh.bsky.social · 02/01/2026Gorgeous first-light images from Carruthers Observatory - absolutely amazing #heliophysics science.nasa.gov/science-rese... 140
Reposted by BrianBoston University @bostonu.bsky.social · 31/12/2025The top social media moment of 2025 was when BU's telescope, the Lunar Environment heliospheric X-ray Imager (LEXI), was about to land on the moon. It is part of NASA’s Blue Ghost Mission 1, which launched from Florida on January 15. This historic event tops our annual recap. 031
Reposted by BrianAGU Science Policy @aguscipolicy.bsky.social · 17/12/2025Dismantling NCAR would be devastating for the research community and the public. Join AGU to ask Congress to speak out and save NCAR: agu.quorum.us/campaign/151...agu.quorum.usSave NCAR from being dismantled today!The Trump Administration has vowed to dissolve the center that provides critical extreme weather and climate data for our nation. 084
Brian @drbwalsh.bsky.social · 12/11/2025Magnetopause already compressed inward past geostationary orbit. GOES-18 is in the magnetosheath 110
Reposted by BrianPlasmaNerd @plasmanerd.bsky.social · 12/11/2025This looks like it could be a big one! Look to the skies this evening.... But now that I've said that, I've jinxed it. 252
Brian @drbwalsh.bsky.social · 05/10/2025Power 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 181
Brian @drbwalsh.bsky.social · 07/08/2025A 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 160
Brian @drbwalsh.bsky.social · 29/07/2025SMILE spacecraft passed through thermal testing. A nice video of the progress by the ESA team www.youtube.com/embed/8soC68...youtube.comYouTube 000
Reposted by BrianLeonard David @ldavid1129.bsky.social · 25/07/2025'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 001
Brian @drbwalsh.bsky.social · 24/07/2025This month marks 10 years teaching at @bostonu.bsky.social. It has been almost 1,000 energetic and curious Terrier students 020
Brian @drbwalsh.bsky.social · 27/06/2025Motivating 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 030
Brian @drbwalsh.bsky.social · 16/02/2025LEXI made it to lunar orbit. 2 weeks to landing and X-ray imaging 021
Brian @drbwalsh.bsky.social · 27/01/2025One of the most exciting step-functions in electrical current I’ve seen. Lexi powering up successfully shortly after reaching orbit. ☀️ 000
Brian @drbwalsh.bsky.social · 14/01/2025T-less than a day to LEXI’s launch on the Blue Ghost. Weather in Florida is looking good 010
Brian @drbwalsh.bsky.social · 10/01/2025In 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 000
Brian @drbwalsh.bsky.social · 07/01/2025T-8 days to LEXI's launch blogs.nasa.gov/artemis/2025...blogs.nasa.govNASA Science, Tech Launching to Moon in Mid-January – Artemis 000
Brian @drbwalsh.bsky.social · 06/01/2025Quickly approaching launch. Excitement is growing to image Earth's magnetosphere from space science.nasa.gov/science-rese...science.nasa.govNASA’s LEXI Will Provide X-Ray Vision of Earth’s Magnetosphere - NASA ScienceA 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. 000
Brian @drbwalsh.bsky.social · 21/12/2024Regular special collection at BPL. Just need to make an appointment in advance for viewing. Lots of good treasures in thereothers.to 010
Brian @drbwalsh.bsky.social · 20/12/2024de 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 120
Brian @drbwalsh.bsky.social · 13/12/2024SMILE is on the move! Always impressive the logistics that go into shipping spacecraft youtu.be/7aJTuJPGYy8?...youtu.beSmile's other half arrives | Let’s Smile (action snippet)YouTube video by ESA Space Science Hub 000
Brian @drbwalsh.bsky.social · 27/11/2024Two 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 000
Brian @drbwalsh.bsky.social · 15/11/2024SMILE mission is coming together www.esa.int/ESA_Multimed... 010
Brian @drbwalsh.bsky.social · 27/02/2024Back 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 010
Brian @drbwalsh.bsky.social · 04/01/2024We’ve had it in vacuum (~10-8torr). Not sure about exact outgassing measurements 010
Brian @drbwalsh.bsky.social · 04/01/2024The good people over at Nanolab have a similar product. We were happy in a vibe test. 110
