Mark McCaughrean
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Mark McCaughrean
@markmccaughrean.bsky.social
510 followers 0 following 16 posts
Former Senior Advisor for Science & Exploration at the European Space Agency / JWST Science Working Group Interdisciplinary Scientist / Co-founder Space Rocks / Refugee from the other place / Author, cycling, music, science, & Tigger
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Hello folks – it's been a while 👋

Just popped in to show off my new #JWST NIRCam image of a young protostellar jet in Cassiopeia, HH288, aka The Dragon Jet 🐉

If you like what you see, there's much more info & a movie over on Mastodon: mastodon.social/@markmccaugh...

and Flickr: flic.kr/p/2rTPMvp
n image of a young protostellar outflow called HH288 in the constellation of Cassiopeia, as seen with JWST. Much of the background is dark black and blue, with many stars sprinkled across with different colours and brightnesses, many showing the classic eight-pointed shape that comes from the JWST optics. The Dragon Jet itself is a swath of red, orange, and yellow emission spread horizontally across the image, with at least two crossing flows. The main flow resembles a Chinese dragon, hence the name. The presence of several protostellar outflows associated with The Dragon and also in the separate dense core below it, The Dragon's Egg, suggests that this is an interesting place to study young outflows from protostars spanning a range of masses.
January 29, 2026 at 3:31 PM
Aloha again 🤙

Materialising briefly to let you know my book, "111 Places in Space That You Should Not Miss", published by Emons Verlag, is out now in Europe & the UK, & the US in September 🔭🚀🛰️🪐☄️✨

10% discount at uk.bookshop.org/p/books/111-... with code "lovebookshops" 📚

100% Tigger approved 😽
A picture of our gold and brown bengal cat standing next to a copy of a book with a spacey cover and a house plant, on one of our balconies with red tiles.
July 16, 2025 at 12:50 PM
Aloha 🤙
July 7, 2023 at 4:22 PM