Celestial objects to scale in size, rotation speed and tilt 🪐
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Dr James O'Donoghue
@physicsJ
Planetary scientist, astronomer & science communicator 
. Previously , now JAXA. Forbes 8 billion under 8 billion mastodon.online/@Physicsj
. Previously , now JAXA. Forbes 8 billion under 8 billion mastodon.online/@PhysicsjDr James O'Donoghue’s Tweets
🆕 Just in: latest pics from , where the #VA260 rocket that will carry into space is being assembled in the vehicle integration building ready for launch in April. Here the central core is raised upright 👉esa.int/ESA_Multimedia #ESAJuice
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Hope you've got clear skies, check this out tonight if so!
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A massive volcanic explosion under the stars, how romantic!
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February 24, 2023, ~ Explosion ~ Popocatepetl Volcano, Mexico ~ 22:36 CST #volcano #popocatepetl #mexico Thank you to Webcamsdemexico & CENAPRED and Livecam Popocatepetl. youtube.com/playlist?list=
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Great views of Jupiter and Venus in the next week! Don't miss them, look west after sunset... they won't be this close again until ~May 2024
Image credit: John Jardine Goss/EarthSky
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Went to the science museum yesterday in Tokyo. It's not to be missed, if you're in the region! 🇯🇵
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NEW: Earth’s emerald and blood orange-red aurora are arguably the envy of the solar system.
But astronomers have now found multicoloured aurora elsewhere: on the extremely cool, exceedingly strange Galilean moons of Jupiter!!🤯
Me, for
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The view of Fuji-san from Nihondaira in Shizuoka did not disappoint today.🗻🤩
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This isn't "worth" a full article for me to write up, but I want to share with you a spectrum from JWST, and a brief thread of why it's so amazing.
Take a look at this image, and let's go through what we see!
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If you follow this account may I gently suggest you don’t as they routinely steal the work of amazing artists and photographers with no credit. “Contact for removal or credits” is such a gross way to run a large account like this that depends on the work of others to function
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If it is not literally the warmest year ever, someone will complain that global warming has stopped.
Year-to-year fluctuations are a normal part of the ongoing global warming trend. Don't be distracted by the noise.
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They're back 💀 (I'm already blocked, without having ever interacted)
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Replying to @physicsJ
The account is back with a new username (@explorecosmos_) and old follower base. Lots of old tweets deleted where photos of that Finnish woman was being used. However, some old replies from followers still exist, which reveal the previous identity behind current username.
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Where’s the stars?
This may help those struggling with basic photography.
Flat earthers, I’m looking at you.
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I wish disinformation wasn't so successful*... 😔
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This is orbital debris re-entering the atmosphere. The reddit linked by this account is also wrong and says "no credits sorry". I wish is disinformation wasn't so successful in spreading earthsky.org/space/march-25
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Meteor breaking into the earth's atmosphere
Source:old.reddit.com/r/interestinga
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Hey My friend Lee Billings had his Twitter account hacked by NFT spammers: . He's been trying to contact you for 3 days with no reply yet. He's an editor at Scientific American and needs access! Can you please fix this?
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So cool
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The @NASA_Orion spacecraft, which recently traveled around the Moon on Artemis I, is now back at @NASAKennedy. The spacecraft arrived at the Multi-Payload Processing Facility (MPPF) at approximately 4:15 p.m. today.
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it's still up, posting crap with thousands of obvious spam bots liking it. Should be like shooting fish in a barrel in terms of removing bots
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This is a good time to remind people to change passwords regularly (in case of leaks etc) and also use 2-factor authentication if possible
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More Likes than Views, not sure how that's possible.
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It happened within the last hour, I think
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Does anyone know Lee Billings (science journalist) on another platform or by another means? If you do, let him know his account has been hacked/repurposed into this: twitter.com/LeeBillings/st
This Tweet is unavailable.
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Oh they've reverted this now 🤡
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Replying to @physicsJ
They’ve already scrubbed the new policy from their Twitter account and website!
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I will have to be suspended then ✌️
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read image description
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Oh, putting your handle in your bio or username is also a violation, lol
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What a beautiful night under the stars. Mae Bannau Brycheiniog yn wirioneddol wych weithiau. I hope it’s the start of a special winter!
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Journalists who cover Elon Musk have been suspended on Twitter tonight: O'Sullivan from CNN, Aaron Rupar and the Washington Post's .
Rupar tells me he has "no idea" why it happened.
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Mead crater on Venus imaged by Magellan in 1990 🛰️ With a diameter of 280 km, it is the largest impact crater on the planet.
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In 1983, after a few drinks, a pair of astronomers at the University of Tokyo, Hisashi Hirabayashi and Masaki Morimoto, fired off a message that included the chemical symbol for ethanol and the word “cheers” in the direction of the star Altair
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Still in shock at seeing my name in (!!!) but I wrote a feature for their January issue about how cosmic cataclysms create heavy elements like ✨gold✨. This is a dream come true and I really hope you enjoy reading it! The universe is amazing 🤩
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What reaching ignition means for nuclear fusion's future
For years, I've had to pour cold water on the hype around nuclear fusion.
Not this time! The breakthrough is real, and our fusion power future really should arrive this century!
Here's why.
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This. is. not. a. photo. ✨🥹
It’s my digital painting collab with made by hand, stroke by stroke!
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A huge collection of papers on #Ganymede from Juno, based largely on the 2021 flyby (PJ34), has just been published by Geophysical Research Letters. Start with Hansen+2022 for an overview of the flyby.
agupubs.onlinelibrary.wiley.com/doi/toc/10.100
Image: NASA/JPL-Caltech/SwRI/MSSS/Björn Jónsson.
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We're back after a 1.4 million mile journey around the Moon.
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LIVE NOW: After 25.5 days in space and a 1.4-million-mile journey around the Moon, the spacecraft is coming home.
The #Artemis I mission is expected to splash down off the coast of California at 12:39pm ET (17:39 UTC). twitter.com/i/broadcasts/1
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Keep up to date with the mission here
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Solar wings are being moved into position ahead Orion's crew module separating from the @ESA service module. We're now 10 minutes from separation. 5000 miles / 8000 km from Earth.
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