Reposted by Justin BartelRobert "The Bobby Yaga" McNees @mcnees.bsky.social · 06/10/2026Happy “Evidence that there are things outside the Milky Way” Day to all who celebrate. 🧪 🔭 25010
Reposted by Justin BartelElizabeth Anne, PhD @lacksauthority.bsky.social · 05/10/2026never the wrong time for this classic 56120153572
Reposted by Justin BartelMike Drucker @mikedrucker.bsky.social · 04/10/2026AI COMPANIES: “People who don’t use AI agents just aren’t aware of the vast power they possess to do anything.” NORMAL PEOPLE: “Wow, okay, wow. Sounds great. What can they do? Give me your top example.” AI COMPANIES: “The hardest task of all: Checking you into a flight!” 26919113
Reposted by Justin BartelJustin Walsh @jstpwalsh.bsky.social · 30/09/2026Shane Ross at Virginia Tech created a simulation of what 500k orbital data centers, as proposed by SpaceX, would look like from your home latitude sdross0.github.io/orbital-data...sdross0.github.ioWhat would orbital data centers look like from your sky?500,000 satellites from SpaceX's FCC filing, two published brightness models and the real stars, for any latitude, date and time. Computed in your browser. 39266
Reposted by Justin BartelESA Space Science @science.esa.int · 30/09/2026Inspector Smile is ready for science! 🫡 This is Smile’s first ultraviolet view showing an auroral substorm. With the ultraviolet camera now operational, Smile becomes the first spacecraft since 2008 to capture the full ring of northern lights around the north pole in ultraviolet light. 🔭 🧪 ☀️ 15870245
Justin Bartel @cephalopernicus.bsky.social · 15/09/2026Nothing says 'golden era of science' (or whatever the tagline is) like throwing world-class equipment in the trash. 120
Justin Bartel @cephalopernicus.bsky.social · 11/09/2026Uh, Jupiter liked the dinosaurs, so maybe this should be JUICE's mascot 010
Reposted by Justin BartelRaysident Evil @sireviscerate.myatproto.social · 07/09/2026It was missing something. 26554119
Reposted by Justin BartelSpace Telescope Science Institute @stsci.edu · 30/08/2026Are you awake? 🥱 NASA Live coverage of the Nancy Grace Roman Space Telescope launch starts at 6:20 a.m.! Launch is scheduled for 7:26 a.m. You have time to make coffee. ☕ #NASARoman 🔭 🚀 nasa.govNASA Live - NASANASA live: Follow live television broadcasts on NASA+, the agency's streaming service, and NASA's social media channels with this schedule of upcoming live events including news briefings, launches and landings. 513552
Justin Bartel @cephalopernicus.bsky.social · 28/08/2026First day off in a week, and I guess I'll keep my alarm set. 110
Justin Bartel @cephalopernicus.bsky.social · 28/08/2026Enjoyed the Saturn part of this, but two other things jumped out: @hankgreen.bsky.social says, 'important thing about the Sun isn't that it's a star, it's that Sun is a system w/ many objects' We can go further. The Sun is a star & the most important thing about *stars* is that they are systems! 120
Reposted by Justin BartelMicah @rincewind.run · 26/08/2026there are going to be many remembrances of Tim Curry today for his brilliant work in Rocky Horror and Clue and so much more, but to me this ridiculous bit from Red Alert sums up everything that made him great you never knew what you were going to get with him, but whatever it was would be brilliantstatic.klipy.comTim Curry: Uncorrupted SpaceAlt: Tim Curry's Space gif from Red Alert 432903535
Justin Bartel @cephalopernicus.bsky.social · 24/08/2026On this, the 20th anniversary of Pluto's reclassification, a reminder that something can be a non-planet and still be a wildly interesting object. If you continue to call what happened in 2006 a "demotion," you're contributing to the biggest misconception in astronomy education since geocentrism. 141
Reposted by Justin BartelDon Davis @ddavisspaceart.bsky.social · 15/08/2026During the recent Total Solar Eclipse the South Korean Danuri spacecraft obtained a nice view of Earth from Lunar orbit with the Moons shadow just visible on Earth. Here is their image, with attribution added, my colorized version and the nearly simultaneous EPIC-DSCOVR image used for the color. 114953
Reposted by Justin BartelDr. Raphael Marschall @spacemarschall.net · 29/07/2026We are used to seeing weird shapes of small asteroids, but this is next level! look at the shape of 44 Nysa from Minker et al. This is 75 km volume-equivalent diameter object! Also it has a satellite! #planetSci 🧪 25511
Reposted by Justin BartelLuke Bones 🦴🦴 @lukemeister.bsky.social · 23/07/2026Further work is urgently needed to constrain the population of lunar baboons. 142
Justin Bartel @cephalopernicus.bsky.social · 22/07/2026This is like remaking Star Wars to be historically accurate. 100
Justin Bartel @cephalopernicus.bsky.social · 17/07/2026I stand by my thesis that Jupiter liked the dinosaurs. Maybe the K-Pg impactor was a match for CO chondrites. The map below shows where such objects are found in the asteroid belt- right next to a resonance with Jupiter. The impactor didn't target Earth, it was pushed! #BetterKnowAnAsteroidseti.orgMeteorites: A Geologic Map of the Asteroid Belt 010
Justin Bartel @cephalopernicus.bsky.social · 15/07/2026Breaking: International Astronomical Union admits the existence of Flying Saucer. @iau-wgsn.bsky.socialase.exopla.netFlying Saucer - All Skies Encyclopaedia 010
Reposted by Justin BartelCosmicRami 🏳️🌈🏳️⚧️ @rami.spaceaustralia.com · 10/07/2026US FCC: “let’s do a consultation on how the community feels about this” Community: “we hate it, don’t do it, it’s real bad, this will impact a lot of people — astronomers, biodiversity, Indigenous communities, more” x 1800 responses FCC: “lol, we don’t care. APPROVED.” 610839
Reposted by Justin BartelTony Dunn @tony873004.bsky.social · 06/07/2026Asteroid Torifune was just imaged by Japan's Hayabusa 2. This asteroid is a rubble pile. If you could gently place it in the middle of a parking lot, it might look something like this. 🔭 #astro 215954
Reposted by Justin Bartelastrafoxen @astrafoxen.bsky.social · 06/07/2026Smallest asteroid ever photographed up close, and WOW I've never seen anything like this before!! No obvious craters and very jagged shape. Just a single, 30-meter-long chunk of solid rock, unlike other asteroid visited by space probe. 5468
Reposted by Justin BartelAndrew Jones @andrewjonesspace.bsky.social · 06/07/2026Tianwen-2 had arrived. Here's asteroid Kamo'oalewa seen from 20 km away www.xinhuanet.com/20260706/eb8... 422181
Reposted by Justin BartelColin Warriner @colinelmustard.bsky.social · 05/07/2026I think this might be one of the most incredible, unsettling and symbolic photos of today’s America I’ve ever seen. I can’t stop looking at it. From Reuters, published on the Guardian website. 21175181880
Reposted by Justin Bartelslate @pleasebegneiss.bsky.social · 04/07/2026they are so close to discovering global warming 822218
Justin Bartel @cephalopernicus.bsky.social · 03/07/2026We do have a few quasi-moons. They may not total 38, but small ones would be hard to see, so we can't rule it out. #BetterKnowAnAsteroid 010
Reposted by Justin BartelMcSweeney's @mcsweeneys.net · 01/07/2026"Every serious legal mind must inevitably face a fundamental choice: Read the Constitution and apply its words as the bedrock laws of the land, or transcend its tired text and interpret the super-secret invisible version that tells you exactly what you want to hear."buff.lyThe US Constitution Is for Simple Folk Still Burdened by the Belief That Words Have Meaning“Every serious legal mind must inevitably face a fundamental choice: Read the Constitution and apply its words as the bedrock laws of the land, or transcend ... 231697518
Justin Bartel @cephalopernicus.bsky.social · 02/07/2026Maybe it will happen today. (For the purposes of this post, "it" refers to someone replacing the battery in the smoke detector that's been beeping in the next apartment over for a full week now) 140
Reposted by Justin BartelNSF–DOE Rubin Observatory @rubinobservatory.org · 30/06/2026The start of a new survey of the Universe? That deserves a new view of the cosmos 🌌 Meet the Ocean of Stars, NSF–DOE Rubin Observatory's newest wide-field image. 🔭🧪 🔗: rubinobservatory.org/gallery/imag... 211737
Justin Bartel @cephalopernicus.bsky.social · 30/06/2026Happy #AsteroidDay! #BetterKnowAnAsteroidasteroids2029.orgAsteroids2029The web page of the International Year of Asteroid Awareness and Planetary Defence (IYAPD) 000
Reposted by Justin Bartelcosmos4u.bsky.social @cosmos4u.bsky.social · 25/06/2026The #Hayabusa2 spacecraft in its extended mission has sighted the #asteroid (98943) #Torifune which it will pass on 5 July: www.hayabusa2.jaxa.jp/topics/20260... - see also www.youtube.com/watch?v=zs34... for a recorded press conference. 084
Reposted by Justin BartelSK Winnicki, PhD 🏳️⚧️ @skwinnicki.bsky.social · 20/06/2026Both totally unnecessary and extremely funny that the Guardian has an interactive graphic for you to change the color of the US flag's blue to the color of the Reflecting Pool from 8 to 19 June and counting 139143273648
Justin Bartel @cephalopernicus.bsky.social · 21/06/2026Some giraffes are roughly two asteroids tall #BetterKnowAnAsteroid 010
Justin Bartel @cephalopernicus.bsky.social · 19/06/2026Just skimmed the full ACM program. I'd have a #BetterKnowAnAsteroid field day at that conference. Whole sessions on interstellar objects, spacecraft dedicated to asteroids, and oddball space rocks of all sorts. Work will never pay for it, but I can start saving now for 2029 110
Justin Bartel @cephalopernicus.bsky.social · 18/06/2026Why yes, I am working on putting the asteroid's shape model in our planetarium software, why do you ask? #BetterKnowAnAsteroid 220
Reposted by Justin BartelLuke Bones 🦴🦴 @lukemeister.bsky.social · 17/06/2026Everyone: There aren't enough hours in the day! Asteroid 2022 GQ1: I'll give you almost 9 seconds arxiv.org/abs/2606.17047 2122
Reposted by Justin BartelAndy Rivkin @asrivkin.bsky.social · 16/06/2026Buzz Aldrin was born closer in time to when Neptune was discovered than to today. 0265
Reposted by Justin BartelDerek Powazek @fraying.bsky.social · 11/06/2026My country breaks my heart. Over and over again. www.cbc.ca/news/science...cbc.caNASA scrubs promise to land first woman, first person of colour on the moon from web pages | CBC NewsU.S. President Donald Trump's campaign to eliminate diversity efforts and language from government organizations has officially reached the moon, with NASA erasing references to its promise to land th... 12725162
Justin Bartel @cephalopernicus.bsky.social · 09/06/2026The fleeting Earth-asteroid connection will, in fact, center around Valentines Day. #BetterKnowAnAsteroid 220
Reposted by Justin BartelAndrew Jones @andrewjonesspace.bsky.social · 06/06/2026Tianwen-2 launched just over a year ago and is expected to perform a burn tomorrow (June 7) Beijing time, setting up a rendezvous with the small, rapidly-spinning asteroid Kamo'oalewa. 27329
Reposted by Justin BartelBen Collins @bencollins.bsky.social · 02/06/2026The money was always there for the good things. 170137713886
Reposted by Justin BartelAndy Saunders - Apollo Remastered @andysaunders-1.bsky.social · 06/05/2026This is incredible. The new NASA image release from #Artemis includes a sequence of 'Hello World' still photographs. I've been processing / animating them and here's what the original didn't show us: Satellites, including their solar arrays, lightning storms and dancing aurora! 5292141
Reposted by Justin BartelSpacepod @spacepod.bsky.social · 05/05/2026Every day people ask me - are you more likely to be attacked by an elephant or to witness a large asteroid hitting the Earth? We did the math! Thanks James Round (www.jamesrounddesign.com) for making social media and lecture-friendly versions of Figure 1 of Nugent et al. 2025! 1142
Justin Bartel @cephalopernicus.bsky.social · 02/05/2026I'm irrationally angry at an unknown neighbor who put a bunch of sticks in two giant trash bags in the alley. I'd dump them out, confident that just putting the natural objects somewhere else in nature would satisfy the stupid goals of this person, but I peeked in one and other stuff's mixed in 000
Justin Bartel @cephalopernicus.bsky.social · 02/05/2026A formal cognitive test seems extreme, but maybe we could have presidential candidates appear in public debates or let them have social media accounts, so we can weed out the morons before they get elected 000