Dr Ryan MacDonald

@distantworlds.space

Lecturer in Extrasolar Planets 🪐 🔭 at the University of St Andrews 🏴󠁧󠁢󠁳󠁣󠁴󠁿

"There are shades of the departed Starmer government in this saga: @ukri.org wants to tell a big story about science funding going up, but instead is mired in a row over a fairly minor sum.... One does not have to be an astronomer to know that optics matter." 👌🔭 www.theguardian.com/commentisfre...

The Guardian view on the Lovell telescope: budget cuts to physics are bad science and worse politics | Editorial

Editorial: Funders have picked a damaging fight with scientists and the public. They should reconsider their plans

theguardian.com

🚨 New research alert 🚨 We have found an atmosphere on a planet orbiting a dead star 🔭✴️💀🪐 Our James Webb Space Telescope (JWST) observations of the white dwarf planet WD 1856b give us a preview into the fate of planets like Jupiter after the death of the Sun. 🧵⬇️ (1/10)

Artist concept of the white dwarf planet WD 1856b

Caption:
Exoplanet WD 1856 b, shown in this artist’s concept, is a gas giant that survived the death of its star. It now orbits a white dwarf at a distance 50 times closer than Earth orbits the Sun. Observations by NASA’s James Webb Space Telescope not only determined the planet’s temperature but also detected molecules in its atmosphere. The former measurement provides evidence that WD 1856 b migrated to its current location billions of years after its star became a white dwarf.

Credits:
NASA, ESA, CSA, Ralf Crawford (STScI)

These are awesome positions where you'll play critical roles in STScI's missions (HST, JWST, Roman)! Definitely apply if interested! Feel free to reach out if you've any questions.

Brett Morris@brettmorr.is · 3mo ago

Graduating with a bachelors or masters in astronomy (or related field)? Want to keep your eyes on the skies without a PhD? Opening for YOU at @stsci.edu: Science Support Analyst on Hubble 🔭 recruiting2.ultipro.com/SPA1004AURA/...

Calling all planetary scientists: The #BPSC26 abstract and early-bird registration deadline of May 9th is soon approaching! Email us your abstracts following the instructions at tinyurl.com/4x8tm6bu, and register for the conference at tinyurl.com/yvnxf6jw. Come share your science with us in June!

Abstracts and Presenter Details – BPSC2026

You must be registered to have your contribution (oral/poster) included in the conference.

tinyurl.com

🚨 Job vacancy! We are recruiting a Computing Officer for the School of Physics and Astronomy at St Andrews ⚛️🔭 High-Performance Computing is critical to our work on understanding the Universe, including the search for life on other planets. 🪐🧑‍💻🖥️ www.vacancies.st-andrews.ac.uk/Vacancies/W/...

Computing Officer (Academic Computing) - AD2860

Computing Officer (Academic Computing) - AD2860, IT Services Salary: Grade 6 / £38,784-£46,049pa Start date: 1 June 2026 Full time Permanent, <p style="color: #212529; margin: 0px 0px 1rem; padding: 0...

vacancies.st-andrews.ac.uk

We have written to Science Minister Lord Patrick Vallance urging him to step him and help reverse the cuts to astronomy and space science proposed by the Science and Technology Facilities Council last month. Read the letter in full 👉️ ras.ac.uk/news-and-pre...

'Reverse the cuts': RAS urges Vallance to avert scientific crisis

The Royal Astronomical Society (RAS) has called on science minister Patrick Vallance to step in and prevent the "catastrophic damage to astronomy and space science" ...

ras.ac.uk

We looked for an atmosphere on TRAPPIST-1d using JWST, but we didn't see any atmospheric absorption. So TRAPPIST-1d is quite different from Earth, despite lying just inside the habitable zone. The planet is either: ➡️ A bare rock. ➡️ Very cloudy. ➡️ Has a thin, Mars-like atmosphere. #Exoplanets 🔭

ESA Space Science@science.esa.int · 12mo ago

The TRAPPIST-1 d exoplanet may be Earth-sized 🌍 but it has no Earth-like atmosphere. Webb’s #NIRSpec has found no traces of molecules that are common in Earth’s atmosphere. Read more 👉 www.esa.int/Science_Expl... 🔭 🧪

Illustration of a planet silhouetted in front of a star. The star shows a large eruption on one side and more wisps of red coming from its southern hemisphere. Two more planets appear in the background.

If you want know all things #HabitableWorldsObservatory then follow @drjovian.bsky.social for the next two days as she posts from the #HWO25 meeting in Washington DC. Thanks Jo for keeping us posted ☺️

Dr Joanna Barstow@drjovian.bsky.social · last yr.

This week I'm lucky enough to be at the #HWO25 meeting, hearing and talking about the Habitable Worlds Observatory, its design and the (many) science cases feeding into it. We're being treated to a fantastic opening talk about the search for biosignatures from interim project scientist Giada Arney.