Dr James O'Donoghue 🪐

Well done, matey!

Everyone writing about Perseverance today should be asking how many of the scientists and engineers who were involved in this discovery no longer work for NASA bc of Trump.

You'll get lucky with something else, I'm sure!

Lunar Eclipse - An hour after rising! #astronomy #astrophotography @stormhour.com @photohour.bsky.social

Worst video ever, but go check out the lunar eclipse going on right now 🙂

The complete Total Lunar Eclipse as captured by me in September 2016.

Good luck UK Lunar Eclipse hunters. The Moon rises in the east in one hour!

Join us for International Observe The Moon Night in-person (registration required) or online!🔭

Held and organized by the @uniofreading.bsky.social alongside Reading Astronomical Society, @royalastrosoc.bsky.social, Troodos Observatory (Cyprus) and supported by STFC
www.reading.ac.uk/news/2025/Un...

Why on Earth is the planet’s day getting shorter? August 5 was a whole millisecond shorter. Strap in for the full explanation.

August 5 was a whole millisecond shorter. Strap in for the full explanation.

Yeah, haven't seen any reports just yet about that. Earthquakes appear to change LOD on the microsecond level, rather than millisecond, so it's a really small signal to detect. Looks like we could only do so by looking at Quasars(?!), which is just a wonderful connection

Time nerds! This is def. one for you!

Today was/is one of the shortest days of the year.

@interplanetary.bsky.social has got you covered as to many of the reasons why this is likely happening.

Bonus - how quasars, and #RadioAstronomy lead to precision timing, orientation, etc. that gives us GPS!

Oh my god, it was such a pleasure to dig into, but so hard to contain myself! If I had more time, I would've made it shorter. Must stop making time puns, there's no time for it today...

Why on Earth is the planet’s day getting shorter? August 5 was a whole millisecond shorter. Strap in for the full explanation.

It's about time that I wrote this:

theconversation.com/why-on-earth...

💯.

Tiny black dot on Saturn. Early this morning, I photographed a rather rare astronomical event, a shadow transit of Saturn’s largest moon Titan across its parent planet. This is a composite of two frames. Questar telescope /Olympus camera. Observed from metro Chicago. #astrophotography

Does Avi not believe rocks are present outside the solar system

Our global petition to save NASA science closes this Thursday, and we’re just shy of 15,000 signatures! Every name counts, this petition will be hand-delivered to members of Congress. Add yours today, Save NASA Science.
planet.ly/petition

The auroral oval seen from space during the early morning on June 1 - captured by the NOAA-21 satellite flying over North America

Update on the ongoing geomagnetic storm: the main magnetic core of the 31 May #solarstorm has arrived at Earth starting around 1 June 12 UTC, BUT it is one of those kinds that are VERY unfavorable for #aurora - the field is entirely northward and very likely to remain so for the next few hours.

Implications of Using Spheroidal “Cone Model” CMEs in Solar‐Wind Models Slow spheroidal CMEs produce much longer transit times to 1 AU than observed Wide spheroidal CMEs produce much faster speeds at 1 AU than observed Fixed-duration CMEs, which mimic observed CME e...

Looks like that fast CME is here already, about 2.5 hours before our predicted window.

Funnily enough, we've *just* worked out why fast CMEs are often earlier than predicted and will be rolling this into the forecast soon!

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Proposed NASA cuts to space science: “Staggering”

The WH proposes $6 billion cut in NASA budget, an overall 24% reduction from previous year – and a shocking 47% cut in funding for NASA’s Science Mission Directorate [reductions to to NASA’s fleet of spacecraft already in space, or proposed], an extinction-level event for the Earth & space sciences.

This Wrexham lad made good

There's a fast CME heading into some fast solar wind and some pre-existing slower CMEs. We're currently putting arrival at noon-to-midnight tomorrow, but this forecast may change as more observations become available.

Updates here: research.reading.ac.uk/met-spate/hu...

Please, please, please contact your representatives. Jobs like mine are on the line. 🔭🧪☄️

www.planetary.org/save-nasa-sc...

Sorry, I hope it doesn't go through like this. Any idea when everyone will know?

Not great.

Here's hoping this 'request' is ignored somewhat by congress. It tends to be for NASA, if memory serves, but things are different now, and I'm not sure how the NSF requests usually play out. It's important to be optimistic, but equally important to show that this is outrageous!

BREAKING: The president's budget request just hit Congress, which could usher in a dark age for NASA space science.
Congress has the final say, but you can help shape the outcome by adding your name to our global petition.
This is just the start of our fight.
Sign the petition: planet.ly/petition

The NASA planetary science fleet chart. It shows two spirals with missions to Moon/Mars and the Solar System. I’ve crossed off all of the missions that will be cancelled in the president’s budget… and there are a lot of them.

The NASA planetary science fleet chart if the president’s budget is enacted.

Is that the NASA allocation to Keck, NexSci?