Adjunct scientist, Max Planck Institute for Astronomy, Heidelberg / Former Senior Advisor for Science & Exploration at the European Space Agency / JWST Science Working Group Interdisciplinary Scientist / Co-founder Space Rocks / New worlds ahead / Opinions very much own
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2026-08-19T20:24:39Z Event JSON
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Last Notes npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean While the pickings are slim in the garden by now, there are still some interesting new finds to be had. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Ad astra, Patrick Stewart ✨ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Let's start with the biggest wasp & we'll come back to another at the end. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Just for fun: the Moon seen through thin cloud last night, just a couple of hours before it was full 🌝 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A couple of mysteries. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Sorry to keep you dangling ... npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Lunar transmissions 🌒🗼 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean This ... npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Well, I'm claiming it – hints of a purple aurora borealis in the skies north of Heidelberg this evening, at latitude 49.4ºN between ~20:20 & 20:50 CEST 🙂 👍 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A couple of new species & nice pictures of a couple of others. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Watching Greece vs Germany in the Nations League. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean As I was driving yesterday from Katwijk to Heidelberg, I didn’t have time to post about the successful second Earth flyby that ESA’s JUICE mission made on Monday, as part of its eight-year journey to Jupiter. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Now, *this* is cycling infrastructure 🥰🇳🇱 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Checking back, I photographed so many interesting arthropods at the Tagungsstätte Löwenstein in May, that lots have gone unpublished 😬✌️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Sorry – awful photos, but the only way I could get them was by holding the camera high above my head & semi-blindly tapping on the fold-out screen to take a shot 🙄 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Success 🙂 BepiColombo’s transfer propulsion module has separated from the two science spacecraft, another major step in this mission to study Mercury. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean The watch party at ESA’s European Space Operations Centre in Darmstadt, moments before the separation of the Mercury Transfer Module propulsion module from the two science spacecraft from ESA & JAXA. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Another major space event today, far from Earth. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Yet another partly-right story from the man in Florida the @nprofile…m6h2 entrusts its space stories to 🙄 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Well, I'm bamboozled 🤷♂️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean There were also damselflies, including this mating pair of western willow spreadings (Chalcolestes viridis; 🇩🇪 Westliche Weidenjungfer). npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean My macro hobby started during the pandemic, photographing dragonflies & damselflies in my NL garden. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean And the winner is ... 🎉 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean @nprofile…pfuj That ain't no ant, ma'am 🙂 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Well, this a puzzle 🧐 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean What a difference rain & cooler weather make 🌧️🙂 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean It may only have been 90% partial, but we had a good time watching the eclipse with many locals atop the 40 metre Teltschikturm at 530 metres up in the Odenwald. Stunning location. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Utterly depressing leader in this week’s Economist on the rapid rise of “agentic flooding” in the UK. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Oh, FFS 😡 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Sometimes I think my garden arthropods are taking the piss 🙄 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A new solar lighthenge discovery 🌞🙂 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Cooler today, but still not much activity apart from the honeybees. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Just heard today that solar physicist, science communicator, & my good friend, Pål Brekke of the Norwegian Space Agency, has been diagnosed with aggressive brain tumours. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean RIP my venerable Nikon D7000 😢 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean It was still flying quickly around, so I couldn't get great close-up shots, but certainly better than earlier today. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A profitable return to the lavender bush this evening – the black & white cloak & dagger bee was there again. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Not to forsake my garden arthropods completely, here are a couple from this evening, just as the Sun was setting & the temperature went down a few millikelvin. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Just one new garden species so far on this warm, overcast, & drizzly day. But it's a doozy ... 🙂 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Happy to spot one of these little jewels in the garden this evening. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean My private Newgrange 🌞 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Little black flies are notoriously difficult to ID. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Back to riding in Germany: 54km this evening in warm, sunny, & breezy conditions. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Not everyone's favourite kind of arthropod, I know, but some cockroaches can be quite pretty 🤷♂️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A conversation I had with four Canadians while out cycling in Mallorca yesterday. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A reminder to look up from the garden insects occasionally ☝️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Somewhat warmer & sunnier today, bringing more arthropods out. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean The ESA-China SMILE mission atop its ride to space – launch scheduled for Tuesday afternoon. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Some late evening sunshine, allowing me to spot this little fly from the glint of his silvery "nose" (really the frons). npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Say "wasp" & most people think only of those in genus Vespula, the yellow & black ones that are a nuisance around your jam sandwich. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Also braving the colder, windier conditions today, this small, colourful, long-legged fly. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean How do flies stay cool on hot days if they can't sweat? 🤨 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean On a somewhat different scale, I briefly glimpsed this sawfly as it was flitting around the garden. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean It's May, so it should be no surprise that the Maybugs are here 🤷♂️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean In the ten days since I was last at @nprofile…f3kp, the greenery around the institute has grown a lot & the arthropods are loving it. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Well, that's unexpected 😳 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Like me, this male goldenrod crab spider (Misumena vatia; 🇩🇪 Veränderlich Krabbenspinne) is waiting to embrace the next wave of insects that will arrive in the garden soon 😬✌️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Three flies & a deadly assassin in the garden just before the sun set over the valley. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Well, I didn't have that on my May Day bingo card – a predatory jumping spider impersonating a noble worker ant 😱 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean From the garden today, something rather rare, I believe 🙂 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Apologies – didn't post after yesterday's sunny 55km ride, which included a wander in the meadows at the Fischkinderstube in Edingen. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean @nprofile…h6sh Strange – there is sound when I view my post & the video in Mastodon. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean <sound on> npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Hive mind – I need your help. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean It's mad out there – lots of new species in the garden, but many of them proving photographically elusive in the warm, sunny conditions 😬 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean And when turning off the light in the living room last night, I saw that one of our large Mediterranean spiny false wolf spiders (Zoropsis spinimana) had taken up a hunting post behind the TV. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Overnight action. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean @nprofile…galm Not on this planet ... I'd be happy to send this marketing company & its singers to another one, if that'd be helpful ... npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Good grief 😭 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A reminder that the Atlantic Meridional Overturning Circulation (AMOC) carries more than a petawatt, one million power stations worth of warmth from the tropics to Europe. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean And now for our regular listeners, an entirely unsurprising piece of news 🙄 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Good morning from Heidelberg 👋 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Hive mind: I'm a bit confused about the claim that tonight's #Artemis II lunar flyby will be the first time humans have seen the far side illuminated. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean As I suspected, media are getting very confused about that #Artemis II Earth image, thanks to NASA’s poor original captioning. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean @nprofile…y6u5 Looks like a carpet beetle, genus Anthrenus. Could be A. verbasci, the varied carpet beetle, depending on where you live. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean You'll likely catch this image a million times in your various feeds: Earth as seen by Reid Wiseman from Artemis II en-route to the Moon. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Still slowly crawling towards full-blown spring here – mostly cloudy & not that warm yet 🤷♂️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean @nprofile…h6sh I'm not fully up-to-speed on all the details, but the original Moon landing mission was supposed to Artemis III, but was already moved to IV. ESM-3 & ESM-4 were delivered by Airbus to KSC in Aug 2024 & Nov 2025, respectively, so those parts of the hardware for those missions is in place. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Yet another #Artemis II article (from a French press agency, no less) ignoring that propulsion, power, & life support to the Orion capsule is provided by ESA’s European Service Module. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Despite my many concerns & reservations, I can’t deny that this is a very cool image. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Sneak preview 👀 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Hope despite it all. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Warm & sunny on this Baden-Württemberg state election day – my wife is working at the local polling station, but as I'm not a German citizen, I can't vote or help out 🤷♂️ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean A female tawny mining bee (Andrena fulva; Rotzpelzige Sandbiene in 🇩🇪), a traditional springtime insect, flying between March & May. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean “A modest proposal for preventing the AI children of rich people becoming a burthen to ordinary parents or countries, and for stopping the propaganda about them being beneficial to the publick.” npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Re: the newly reshuffled Artemis programme, here's the official NASA graphic laying out the architecture for missions II, III, IV, and beyond. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean The Moon is, err, a comet & therefore an interstellar alien spaceship 👽🛸 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Just to confirm yesterday's sighting, a pair of peacock butterflies (Aglais io; Tagpfauenauge in 🇩🇪) were out again today in the warm sunshine, feeding off some early flowers. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean The world is on fire in so many ways & I blame software. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Doubly invasive 😬 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean @nprofile…3kqn You're most welcome – please feel free to use it (although note the CC BY-SA licence if you feel tempted to start selling posters 😉) npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Enter the Dragon 🐉🥋 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean On this day, forty years ago: 28 January 1986. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Hmm 🤨 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Finally some good news. npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Teaser 😉 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Markedly colder today & only wan sun, meaning that the willingness of bugs to show themselves & my willingness to search for them were both reduced 🥶 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Yet more insects out in the warmer & sunnier weather today 🌞 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Happy #JWST Launch Day Fourth Anniversary, everyone 🚀🛰️🔭✨ npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Just a reminder, folks – northern winter solstice is at 16:03 CET / 15:03 UTC today, the moment at which Earth’s North Pole is maximally tilted away from the Sun 🌞🌍 npub17spn2rk8w45njus2eegkte35ykjj9alrmmtt3pahrn5qa25tdntsasgf0k Mark McCaughrean Weekend update for folk interested in image processing & open source software – the second GIMP 3.2 release candidate is out.
