Lisa Kelsey

YouTube video by 4-meter Multi-Object Spectroscopic Telescope First Light for 4MOST!

First Light for 4MOST!

The 4-metre Multi-Object Spectroscopic Telescope (4MOST) has captured its very first spectra!

Video Credit: AIP/R. de Jong, AIP/K. Riebe, AIP/A. Saviauk, CRAL/J.-K. Krogager

A yellow road sign showing a winding arrow standing on a desert mountain road leaning towards the 4MOST site, symbolising the twists and turns of the journey to first light.

The road has been winding, but the destination is now in sight! 4MOST is almost at first light! Stay tuned 👀

📷: F. Laurent

#4MOST #telescope #astronomy #astrophysics #science #observatory

A graphic featuring a headhsot and a quote from Dr Christopher Frohmaier

Get to know the people working in the UK to make the @vrubinobs.bsky.social LSST happen. We caught up with @cfrohmaier.bsky.social to find out more about his work with @4most-eu.bsky.social TiDES and what he's looking forward to most about the Rubin survey 🔭 www.lsst.ac.uk/news/2025-09...

Welcome to the official 4-metre Multi-Object Spectroscopic Telescope (4MOST) Bluesky account! Stay tuned for our first-light events coming very soon, and updates on all of the amazing science we will be completing over the years to come!

📷: Y. Beletsky/ESO

#4most #ESO #telescope #astronomy

A spacious, modern lecture hall with tiered seating and wood paneling. Dr Phil Wiseman and Maggie Aderin-Pocock sit at desks having a conversation. A professional video camera on a tripod is positioned in the foreground, facing them with additional lighting equipment set up nearby.

Don't miss our expert @astro-pwise.bsky.social on BBC Four tonight.

He's been speaking with Sky at Night about how astronomers are measuring the expansion of our universe by watching stars explode.

Watch it here from 10pm 👉 https://www.bbc.co.uk/programmes/m002j9vz

New Arabic records from Cairo on supernovae 1181 and 1006 The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000-5000 yr), the unusual star IRAS 00500+6713 with a surroundin...

One of the awesome bits of supernova science I always love is when someone finds a new ancient record of a supernovae! In this case new Arabic records for SN1181 and SN1006 from poems!

arxiv.org/abs/2509.04127

This is a top-down image of the front of a new instrument for ESO’s telescopes. At its outer edges is a ring of metal, within which sits a hexagonal structure made of thousands of fibres that are standing upright. From this angle, each one looks like a single point, and some of the fibres have been moved closer together so that they form a pattern within the hexagon. For this image, the pattern is the shape of a large number four.

Spot a logo that gives off superhero vibes? 😉

Meet "Fantastic 4MOST", which will soon join our league of extraordinary instruments.

@4most-eu.bsky.social comes packed with superpowers. Discover them: www.eso.org/public/image...

📷 ESO/4MOST/Steffen Frey

🔭 🧪 #instrumentation

Breaking my Bluesky hiatus to share that our paper on GOTO0650, the new dwarf nova discovered by Kilonova Seekers and followed up with a worldwide team of citizen scientists, was published today in Astronomy and Astrophysics.

Read the full press release here: warwick.ac.uk/news/pressre...

Hello, hallo, hola and g'day @bsky.app! We're a collection of telescopes, software agents, and actual humans that make up the Gravitational-wave Optical Transient Observer (GOTO) network and collaboration! Follow us to keep up with our adventures in transient astronomy

Hey everyone! Its time for a paper thread! My first here on Bluesky 😁

This time on the weird and wonderful transient AT 2018dyk 😎

You can read along in this thread, or if you'd prefer to get straight to the paper you can find it ...

Via MNRAS: academic.oup.com/mnras/articl...

Professor Dr Isobel Hook alongside the Caroline Herschel Medal.

🚨 Exciting announcement 🚨

Professor Dr Isobel Hook has been awarded the 2025 Caroline Herschel Medal for her "pioneering" work on distant supernovae and the accelerating universe! 🌌 💫🏅

Congrats Professor Hook! #WomenInSTEM #Astronomy https://buff.ly/3EBkg8f

Almost certainly being paranoid, but astronomers: someone outside the US has ADS backed up, right?

I've been trying to get my head around these attempts to erase women from history (see also: covering up photos at the cryptography museum). It's not about equity in future hiring or funding decisions.

It's an implication that women can only be successful though DEI initiatives, not merit. Grim.

Hi Paul! I'm doing great, thanks - hope you are too :D

Finally given up on the other place - hello Bluesky!