Peter T Gallagher
@petertgallagher.bsky.social
200 followers 79 following 15 posts
Sun, Space, Astro, History, Bikes
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Reposted by Peter T Gallagher
chrislintott.bsky.social
At some point we need to have a discussion about the ethics of participation in press releases as scientists. From today’s K2-18b saga, Nikku Madhusudhan in the press release says ‘The signal came through loud and clear’ (1/n)
Reposted by Peter T Gallagher
esa.int
Today, we’re launching ‘Strategy 2040’, laying out ESA’s future activities and priorities, with a clear and ambitious vision to cement Europe’s leadership in space. #Strategy2040 will evolve and grow over the years ahead.

Read more 👉 esamultimedia.esa.int/docs/corpora...
petertgallagher.bsky.social
Great day at DIAS Dunsink Observatory talking future space missions … and checking out sunspots with the historic Grubb Refractor. Not a bad way to spend my birthday.
Reposted by Peter T Gallagher
taramurphy.bsky.social
First images from the Square Kilometre Array Low Frequency (SKA-Low)!

Taken with only 1,024 of the planned 131,072 antennas, and it's already looking good :)

#RadioAstronomy
petertgallagher.bsky.social
Congratulations on this huge achievement, Craig. Can’t wait to see the data!
petertgallagher.bsky.social
Spotted this rolled up on a shelf in Birr Castle today: “Observations of the radiation of heat from the Moon Dec 1868 - Apr 1869”.

The 4th Earl made a 3 foot telescope and thermopile to measure lunar heat. Pretty amazing.

Published in Proc of Royal Society 1869! www.jstor.org/stable/pdf/1...
Reposted by Peter T Gallagher
science.esa.int
Solar Orbiter is getting ready for a close encounter with #Venus.

Today’s flyby will be the first to significantly ‘tilt’ the spacecraft’s orbit and allow it to see the #Sun’s polar regions, which cannot be seen from Earth.

Get the details 👉 www.esa.int/Enabling_Sup...

🔭
Solar Orbiter ready for close encounter with Venus
The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with Venus so far.Today’s flyby will be the first to significantly ‘tilt’ the spac...
www.esa.int
Reposted by Peter T Gallagher
eurospacehistory.bsky.social
#OTD 10 February 2020, @esascience.esa.int’s Sun-exploring #SolarOrbiter spacecraft was launched on a US Atlas V 411 rocket from Cape Canaveral, Florida.

www.esa.int/Science_Expl... (pics: @esa.int and @ulalaunch.bsky.social)
Reposted by Peter T Gallagher
hayesla.bsky.social
Spotted some apt graffiti by Broombridge this morning while cycling along the Royal Canal to Dunsink - right at the spot where Hamilton first wrote it down:

i² = j² = k² = ijk = -1

😂
Reposted by Peter T Gallagher
esa.int
Big news! We’ve just launched some new accounts 🎉

Give them a follow:
🔭 @esascience.esa.int
🧑‍🚀 @esaexploration.esa.int
🚀 @esatransport.esa.int
🌍 @esaearth.esa.int
📡 @esaoperations.esa.int
⚙️ @esatechnology.esa.int
🛰️ @esaconnectivity.esa.int

Stay tuned for exciting things ahead! 💙✨
Reposted by Peter T Gallagher
taramurphy.bsky.social
Three Square Kilometre Array Commissioning Scientist jobs available to work at the SKA-Low Science Operations Centre in Perth, Western Australia.

recruitment.skao.int/vacancy/skal...

Deadline February 23rd. Contact George Heald (@georgeheald.bsky.social) for more information.

#RadioAstronomy
SKA-Low Commissioning Scientists - SKA Observatory
recruitment.skao.int
Reposted by Peter T Gallagher
brenttoderian.bsky.social
Air pollution has dropped significantly in #Paris in the last 15 years. Mayor @annehidalgo.bsky.social’s leadership has traded car space for green space, safe bike space, kid space.. and traded pollution for people.

Good trade.
Change in Paris air quality between 2007 and 2023 using visuals
Reposted by Peter T Gallagher
aswogeosphere.bsky.social
Comet C/2024 G3 (ATLAS) is putting on quite a show over the last few days in the @esa.int SOHO/LASCO coronagraph images, as it passed through the closest point of its orbit at 0.093 au. This comet's orbit is strongly inclined to the plane of the planets. 👇 en.wikipedia.org/wiki/C/2024_...
Reposted by Peter T Gallagher
taramurphy.bsky.social
Hot off the press!

One of my students, Yu Wing (Joshua) Lee, has discovered a new radio transient (along with @manishacaleb.bsky.social).

Read more about "The Stellar Object That’s Too Slow to Shine" in their Conversation article:
theconversation.com/blinking-rad...

#RadioAstronomy
Blinking radio pulses from space hint at a cosmic object that ‘shouldn’t exist’
The slowest ‘cosmic lighthouse’ ever found challenges our understanding of how neutron stars work.
theconversation.com
petertgallagher.bsky.social
Good night … from Dunsink Observatory
petertgallagher.bsky.social
👏👏
esa.int
Our #Proba3 twin satellites separated last night, 23:00 GMT/00:00 CET. When their Sun-observing mission starts, the two will adopt a stable configuration at 150 m away from each other, ready to create artificial eclipses on demand☀️🔭
Proba-3 becomes two: satellites separated
Last night a crucial step in the European Space Agency’s eclipse-making Proba-3 mission was completed: the two spacecraft, flying jointly since launch, have successfully separated. This leaves them re...
www.esa.int
Reposted by Peter T Gallagher
sungrazercomets.bsky.social
As many have pointed out, the LASCO images on the SOHO website are saturated. So this is the result of my own algo for processing them.

And I will echo my sentiments from yesterday: This. Comet. Is. RIDICULOUS! 🤩😍 ☄️🔭☀️
petertgallagher.bsky.social
Good luck with launch preps, Craig. Can’t wait to see the data!
Reposted by Peter T Gallagher
cmundell.esa.int
Many congratulations for Professor Jackman and grateful for her expert advice and work with @esa!
royalastrosoc.bsky.social
And lastly, congratulations to Professor Caitriona Jackman, of the DIAS Dunsink Observatory, for being awarded an Honorary Fellowship for her "outstanding service and leadership of planetary magnetospheric physics in Ireland, the UK, and internationally".

🥳 👏
Professor Caitriona Jackman on a starry background alongside text that reads: 'Honorary Fellowship (Geophysics)'.