Do you want to work on breakthrough discoveries? @science.org is recruiting a full-time research editor to handle papers in physics, preferably with expertise in photonics. ⚛️🧪 Can be based in Cambridge (UK), Washington DC (US), or remote in either country. recruiting.ultipro.com/AME1123ASEM/...

An Editorial in @science.org discusses the recent reorganisation of the UK science ministry, and plans to improve commercialisation of British science. @profgeraintrees.bsky.social & @jameswilsdon.bsky.social argue that capital investment is the main limitation. 🔭🧪⚛️ www.science.org/doi/10.1126/...

Editor's choice: Will the Sun destroy Earth? Esseldeurs et al. simulate the fate of the inner Solar System when the Sun evolves into a red giant star. ☄️🔭🧪 www.science.org/doi/10.1126/...

Now published in final print format, with my editor's summary. ☄️🔭 #exoplanet www.science.org/doi/10.1126/...

Observing an atmosphere on a rocky #exoplanet orbiting in the habitable zone: Cherubim et al. use transit spectroscopy to identify helium absorption by LHS 1140b. The results indicate a helium-dominated atmosphere that is undergoing transient escape. ☄️🔭🧪 #Exo6 www.science.org/doi/10.1126/...

The Curiosity rover has found stones composed of near-pure sulphur in an ancient river canyon on #Mars, report VanBommel et al. There's no sign of nearby volcanism, so they propose formation was by decompression of sulphur-rich clathrates. ☄️🔭 #planetsci www.science.org/doi/10.1126/...

This week I am attending the Exoplanets 6 conference in Porto. If you’re here and interested in publishing in Science (@science.org), please find me in a coffee break for a chat! #Exo6 #exoplanets ☄️

Editor's choice: Is it possible to focus neutrinos? Britzen et al. demonstrate a lens that does the job. ☄️🔭⚛️ #highenergyastro www.science.org/doi/10.1126/...

Stellar activity affects #exoplanets, but how about the other way around? Revilla et al. identify periodic stellar activity induced by a Neptune-mass exoplanet orbiting a red dwarf star. The strength of the interaction constrains the exoplanet's magnetic field. ☄️🔭 www.science.org/doi/10.1126/...

Marchi et al. report results from the the flyby of asteroid Donaldjohanson (DJ) by the Lucy spacecraft. They find DJ has a bi-lobed shape and is in a tumbling spin. The crater density is consistent with an age of about 150 million years. ☄️🔭 #planetsci www.science.org/doi/10.1126/...

Shin et al. find that super-earth and mini-neptune #exoplanets are on orbits with different eccentricity trends. The results imply that dynamic processes (such as impacts) play a role in generating the radius valley. ☄️🔭 www.science.org/doi/10.1126/...

Dynamical mass measurements of supermassive black holes (SMBHs) are usually limited to nearby examples. Newman et al. use gravitational lensing and stellar kinematics to measure the mass of an inactive SMBH at redshift 2, over 10 billion years ago. ☄️🔭 #extragalactic www.science.org/doi/10.1126/...

Editor's choice: Souto et al. observe two systems where a young star has a very different carbon-to-oxygen ratio from the surrounding protoplanetary disc. This implies that chemical processes within the disc are affecting the types of #exoplanet forming there. ☄️🔭 www.science.org/doi/10.1126/...

Observations of #exoplanet atmospheres usually produce a combined spectrum of the morning and evening sides. Mukherjee et al. have used JWST to separate the two for a hot jupiter. They find very different spectra: a clear warm wet evening vs a cold cloudy morning. ☄️🔭🧪 www.science.org/doi/10.1126/...

La Specola museum - housed in the old university observatory - has an excellent geology gallery. The specimens are amazing, very well displayed, and include a comprehensive collection of different meteorite types. 🔭🧪 The natural history collection there is also very impressive.

These are not just Galilean-style telescopes, they are the originals: hand-built by Galileo himself in 1609 and 1610, the only surviving examples. The older of the two is possibly the telescope he used to discover the moons of Jupiter - which revolutionised astronomy. 🔭🧪⚛️ #astrohistory #planetsci

Florence is rightly famous for its art galleries, but I was also impressed by the city’s science museums. 🔭🧪⚛️ This enormous armillary sphere is in the Museo Galileo; it shows the Ptolemaic model of the Solar System. Built by Antonio Santucci in 1593, for Ferdinand I de' Medici. #astrohistory

Editor's choice: can stars be used to do #cosmology? Tomasetti et al. have dated the 160 oldest individual stars in the Milky Way. This allows them to set maximum and minimum ages of the Universe. ☄️🔭⚛️ #stellarastro www.science.org/doi/10.1126/...

This paper has now been published in final journal format, including the authors' one-page summary of their results, and my one-paragraph summary. Pick your preferred level of detail! ☄️🔭🧪 #exoplanets www.science.org/doi/10.1126/...

Gas within the Solar System's heliosphere emits a complex pattern of soft X-rays. Dennerl et al. use the eROSITA X-ray survey to disentangle this foreground emission and determine where in the heliosphere it comes from. ☄️☀️🔭 #heliophysics #highenergyastro www.science.org/doi/10.1126/...

Why is the popular stereotype of an astronomer a man with glasses wearing a lab coat? I’ve been on plenty of professional observing runs - there’s certainly a gender bias and glasses were fairly common (including me), but I’ve *never* seen an observer in a lab coat. Or a tie for that matter. ☄️🔭🧪

Why bother doing astronomy and other blue-skies research? @e-astronomer.bsky.social discusses funding crises in the US & UK, and how researchers should (and shouldn't) justify the required investment. ☄️🔭🧪⚛️ www.science.org/doi/10.1126/...

This paper has now been published in final journal format, and is featured on the cover of this week's print issue. ☄️🔭 #extragalactic www.science.org/doi/10.1126/...

This paper is now available in final journal format, including the authors' one-page summary for the print magazine. www.science.org/doi/10.1126/... ☄️🔭 #planetsci

As an example science application, they apply the code to a JWST survey searching for distant galaxies. By improving the depth of the photometry in every band, they treble the number of z>9 sources identified in the survey field. ☄️🔭 #astrocode #extragalactic www.science.org/doi/10.1126/...

The code learns the detector noise characteristics and focusses on only noise-dominated parts of the image. In a test survey with 168 exposures, they give only 8 of them to the ASTERIS algorithm. The code recovers the same sources as appear in the deeper stack. ☄️🔭 #astrocode

Can astronomical imaging be more sensitive, with no additional observations? Guo et al. apply machine learning to the co-addition (stacking) of multiple exposures. For stacks of 8 JWST NIRCam exposures, the detection limit improves by 1 magnitude. ☄️🔭 #astrocode www.science.org/doi/10.1126/...

NASA ADS has some very practical error messages ☄️🔭 (re-running the same query fixed the issue)

Editor's choice: Studies of #exoplanet demographics usually exclude binary stars. Sullivan et al. investigate those and find that exoplanets are only half as common orbiting binary stars (compared to single stars), and have a different radius distribution. ☄️🔭🧪 www.science.org/doi/10.1126/...

Wilson et al. have found a system of four #exoplanets orbiting a red dwarf star, in the sequence: rocky - gaseous - gaseous - rocky again. This spans the radius valley within a single system, and distinguishes between two different planet formation theories. ☄️🔭🧪 www.science.org/doi/10.1126/...