Reposted by Kristian ClausYvette Cendes @whereisyvette.bsky.social · 21/09/2026And it scales PERFECTLY with what we see in our own solar system for magnetosphere field strength and radio emission! We get a lower limit of 1200 Gauss, which is... A LOT. For comparison, Jupiter is ~10 Gauss. This is FAR STRONGER than anything we have detected locally 2222
Reposted by Kristian ClausYvette Cendes @whereisyvette.bsky.social · 21/09/2026Just LOOK at Fig 2 in the preprint! This emission is definitely NOT coming from the star, but IS coming from where Beta Pic b is located! Which we know for sure thanks to direct imaging! 1212
Reposted by Kristian ClausYvette Cendes @whereisyvette.bsky.social · 21/09/2026He relied on the tiny, minute difference in signal arrival btwn the antennas in the array to pinpoint where it was coming from (see figure), data from the Gaia satellite, a VLBI radio source in field, and a TON of other technical tricks to localize the source for real in the Beta Pic system. And... 1233
Reposted by Kristian ClausYvette Cendes @whereisyvette.bsky.social · 21/09/2026We got follow up time, and IT GETS BETTER! There is PERIODICITY! Which is about 8 hours longer, which is as long as the period for one exoplanet in the system, Beta Pic b!!! 🤯 1302
Reposted by Kristian ClausYvette Cendes @whereisyvette.bsky.social · 21/09/2026A DETECTION! Clear as day! In the 1-3 GHz range! (MeerKAT doesn't unfortunately go to higher frequencies.) Pretty darn compelling! 1242
Reposted by Kristian ClausYvette Cendes @whereisyvette.bsky.social · 21/09/2026But to begin, we can get NATURAL radio emission from exoplanets! We see this in our own solar system, where every planet w a magnetic field emits some radio emission. And it's not all faint- Jupiter is brighter than the sun in radio when its beam is pointed at us! (pic here taken with the VLA) 2242
Reposted by Kristian ClausYvette Cendes @whereisyvette.bsky.social · 21/09/2026If @science.org is covering it, I guess I should share something here- we have for the first time definitively detected radio emission from a planet around another star! 🔭🧪🎢 What does this mean? Details in thread! (But TL;DR- still not aliens) 🧵 www.sciencenews.org/article/exop...sciencenews.orgFirst radio waves seen from an exoplanet hint at otherworldly aurorasThe gas giant Beta Pictoris b, about 63 light-years away, has the mass of 10 Jupiters and a magnetic field thousands of times as strong as Earth’s. 919365
Kristian Claus @kristianclaus.bsky.social · 18/09/2026You pregame the snack with a different snack. 010
Reposted by Kristian ClausProf. Eliot Jacobson @climatecasino.net · 09/09/2026Breaking News! The 3-year mean rate of atmospheric CO2 growth just hit a new record high after August's data was released, now at 8.33 ppm per 3-years. And the dip in the early 1990s was Mt. Pinatubo. 810741
Reposted by Kristian ClausDavid Blanchflower BSc @davidbflower.bsky.social · 09/09/2026Archaeologists discover ancient tomb in Peru. 🧪 www.bbc.co.uk/news/videos/...bbc.co.ukAncient tomb found in Peru in a largely undisturbed stateThe burial site of the ancient pre-Incan Chimu culture was found largely intact. 2538
Reposted by Kristian ClausBob Henson @bhensonweather.bsky.social · 09/09/2026The kind of U.S. trifecta we don't want: hottest August, hottest summer, and hottest year to date :-/. U.S. drought situation is pretty grim too, with Lakes Powell and Mead both near all-time lows. Looking to you, El Niño. @climateconnections.bsky.social yaleclimateconnections.org/2026/09/we-j...yaleclimateconnections.orgWe just had the hottest August, hottest summer, and hottest year to date in U.S. history » Yale Climate ConnectionsNOAA data show unprecedented heat, as deepening drought, shrinking reservoirs, and a severe wildfire season underscore the growing impacts of a warming climate. Could El Niño bring some relief? 14021
Kristian Claus @kristianclaus.bsky.social · 09/09/2026I got a great deal yesterday. Historically great. 000
Kristian Claus @kristianclaus.bsky.social · 08/09/2026static.klipy.comTransformers G1: Decepticon to Autobot Logo TransitionALT: Transformers G1: Decepticon to Autobot Logo Transition 000
Reposted by Kristian ClausProf. Eliot Jacobson @climatecasino.net · 08/09/2026Breaking News! Code UFB!!! For only the second time on record, global sea-surface temperatures are more than 6 standard deviations above the 1982-2011 baseline, reaching 6.21SD yesterday. The record of 6.24SD was set on January 9, 2024. Maybe tomorrow? Stay tuned! 21451202
Reposted by Kristian ClausNereide @drnereide.bsky.social · 07/09/2026🧵 Very dense stars, such as old millisecond pulsars and white dwarfs, could harbor a tiny #blackhole as massive as a truck. A new study does not assume it exists: it calculates what would follow if that seed could form.🔭🧪⚛️ phys.org/news/2026-09-black-hole-tons-star-dark.html #cosmology 2469
Reposted by Kristian ClausDavid Blanchflower BSc @davidbflower.bsky.social · 07/09/2026Bat tunnel built under new dual carriageway. 🧪 🦇 www.bbc.co.uk/news/article...bbc.co.ukBat tunnel built for new A421 road between Bedford and CambridgeNational Highways says the bat tunnel will help wild animals "safely navigate" a dual carriageway. 85211
Reposted by Kristian ClausJeff Berardelli @weatherprof.bsky.social · 07/09/2026*Big El Niño Boost in next few weeks! Our already record El Niño is about to get a spike to “Historic”. Humans have never seen such an episode, so I’d expect some unprecedented events. A major push of west winds in the Tropical Pacific will surge warming. 1/ 7281140
Reposted by Kristian ClausDavid Blanchflower BSc @davidbflower.bsky.social · 06/09/2026'Nepal bet nearly everything on hydropower - the floods show why that's a problem.' 🧪 www.bbc.co.uk/news/article...bbc.co.ukNepal bet nearly everything on hydropower - the floods show why that's a problemMore than 10% of Nepal's energy generation capacity was knocked out by last week's floods. 4235
Reposted by Kristian ClausClimatologist49 @climatologist49.bsky.social · 05/09/2026Nepal observed their warmest August nationwide, with the most anomalous region being the border with China/Tibet. It is hard to imagine that record warm temps did not hasten the bedrock/glacier collapse disaster. 48733
Reposted by Kristian ClausDakota Smith @weatherdak.bsky.social · 05/09/2026Holy smokes Hurricane Lowell's eye is incredible. 29526
Reposted by Kristian ClausProf. Eliot Jacobson @climatecasino.net · 05/09/2026Breaking News! Code: Yikes! The latest Nino 3.4 plume was just released by ECMWF, showing the peak of the current El Nino coming in at about 4.0°C above the 1991-2020 average in December. The previous record monthly peak was 2.8°C in November, 2015. 915464
Reposted by Kristian ClausCosmicRami 🏳️🌈🏳️⚧️ @rami.spaceaustralia.com · 24/08/2026A couple years back (2022), Earth intersected with a powerful Gamma-ray burst, one that originated ~2 billion years ago. It was so powerful it literally shook our atmosphere (we can see this in radio). New #PrePrint provides interpretation of what happened.... and it reads like an epic movie! 2487
Reposted by Kristian ClausNereide @drnereide.bsky.social · 20/08/20264/8 This close approach makes S301 sensitive to the rotation of the MBH. The Lense-Thirring effect occurs when a spinning black hole drags and twists the spacetime around it, leading to a slight alteration of the star’s orbit. 1101
Reposted by Kristian ClausNereide @drnereide.bsky.social · 20/08/20263/8 At pericenter — the closest point of its orbit — S301 reaches about 12 au from the massive black hole (MBH), roughly the same distance as the Sun to Saturn. No previously observed star has come this close. 1122
Reposted by Kristian ClausNereide @drnereide.bsky.social · 20/08/20261/8 A team, led by researchers at #MPE and the Paris Observatory/PSL, detected S301, the closest star around Sgr A*, the BH at the heart of our Galaxy. 🔭🧪 It orbits in 8.7 years and its peak velocity reaches about 25,000 km/s, so being faster than any known star in the Milky Way.⚛️ #cosmology 35815
Reposted by Kristian ClausProf. Eliot Jacobson @climatecasino.net · 18/08/2026Quick El Niño update. The most recent Niño 3.4 sea-surface temperature for August 17th was 2.73°C above the 1991-2020 average. This marked the 80th consecutive day setting a new record daily high, and was 0.92°C above the previous record for the day set back in 1997. 21519249
Kristian Claus @kristianclaus.bsky.social · 19/08/2026Needed a stamp. Bought 20. Too perfect to use. Still need a stamp. 100
Reposted by Kristian ClausNereide @drnereide.bsky.social · 17/08/20263/8 The paper - 'A gas-enshrouded and gas-reddened black hole at cosmic dawn', Nature (12 August 2026) – proposes a model in which a supermassive black hole (about 10⁶–10⁷ solar masses) is surrounded by an envelope of extremely dense and turbulent gas, approximately the size of the Solar System. 171
Reposted by Kristian ClausNereide @drnereide.bsky.social · 17/08/20262/8 Contrary to some recent claims, this is not something completely new that the cosmos has never shown us before — similar objects (the so-called little red dots) have been observed for years — nor is it a star with a black hole inside in the literal sense. 192
Reposted by Kristian ClausNereide @drnereide.bsky.social · 17/08/20261/8 In 2025, I reported the discovery of MoM-z14, the most distant galaxy confirmed spectroscopically, a result of the JWST "Mirage or Miracle" (MoM) program led by R. Naidu & collaborators.🔭⚛️🧪 They have just published another great result from the same program in Nature: MoM-BH*-1. #cosmology 35519
Reposted by Kristian ClausNereide @drnereide.bsky.social · 09/08/20261/14 #Asteroid (44) Nysa, discovered in 1857, is one of the largest known E-type asteroids. A research team used SHARK-VIS at the LBT & SPHERE/ZIMPOL at the VLT to obtain the highest-resolution images ever taken of one of the Solar System’s most enigmatic asteroids.🔭🧪⚛️ lowell.edu/press-releas... 1369
Reposted by Kristian ClausCosmicRami 🏳️🌈🏳️⚧️ @rami.spaceaustralia.com · 04/08/2026These systems are rare but very useful: the rotational stability of millisecond pulsars (think: very accurate, stable clocks) allows astronomers to perform very precise tests of gravity in three-body systems and to consider how these systems came to be through their evolutionary formation. 0152
Reposted by Kristian ClausCosmicRami 🏳️🌈🏳️⚧️ @rami.spaceaustralia.com · 04/08/2026👀👀👀 Ohhhh, this is very exciting science! 🔭 Two independent papers are reporting updated details of the PSR J0435+3233 system: it's a triple! Features a millisecond pulsar + a helium white dwarf and now a Sun-like star. arxiv.org/abs/2607.27462 arxiv.org/abs/2608.01227arxiv.orgOn the triple nature of the PSR J0435+3233 systemContext. The recent pulsar timing ephemeris of PSR J0435+3233 indicates that this millisecond pulsar (MSP) has a spin-down rate that is much higher than observed in other MSPs and challenges our under... 1294
Reposted by Kristian ClausNereide @drnereide.bsky.social · 01/08/20261/11 #JWST has revealed something unprecedented about Neptune. For the first time we have spectra of three small inner moons (Larissa, Galatea, Proteus) and the rings. 🔭 Their composition is unique in the outer Solar System.⚛️🧪 www.caltech.edu/about/news/n... #planetsci #Astronomy #Science 511042
Reposted by Kristian ClausNSF–DOE Rubin Observatory @rubinobservatory.org · 30/07/2026Access to Cerro Pachón remains our primary challenge. Accumulations of up to 3 meters (10 feet) of snow and muddy conditions have slowed progress to the summit. Heavy equipment is being mobilized to clear the roads.🔭🧪 1293
Reposted by Kristian ClausNSF–DOE Rubin Observatory @rubinobservatory.org · 30/07/2026Chile Storm Recovery Update: 30 July 2026 Recovery efforts continue at NSF NOIRLab’s facilities in Chile, which include NSF–DOE Rubin Observatory, after historic winter storms across the Coquimbo Region. Full recovery will take several weeks, but teams are making progress. 🔭🧪 1509
Reposted by Kristian ClausDakota Smith @weatherdak.bsky.social · 27/07/2026Satellite view of the storm that produced a tornado that hit Appleton and Menasha, Wisconsin. 17729
Reposted by Kristian ClausAAS Press Office @press.aas.org · 27/07/2026NASA: MAVEN Illuminates New Understanding of Auroras at Mars science.nasa.gov/missions/mav...science.nasa.govNASA’s MAVEN Illuminates New Understanding of Auroras at Mars - NASA ScienceNASA MAVEN (Mars Atmosphere and Volatile Evolution) mission scientists have uncovered a key puzzle piece in understanding certain types of auroras on Mars, 011
Kristian Claus @kristianclaus.bsky.social · 25/07/2026I checked. Soft-rock DJ Delilah has not played a Green Day song. Yet. 000
Reposted by Kristian ClausJason Wright @astrowright.bsky.social · 22/07/2026On the contrary, this object is not just a moon, it is a moonmoon! Specifically, it is the moonmoon brown degenerate "star" CD-35 2722 Bb. The system is dynamically equivalent to the system in Figure 2 here: arxiv.org/abs/2303.18217arxiv.orgA Unified Nomenclature and Taxonomy for Planets, Stars, and MoonsI solve the problem of nomenclature of planets, stars, and moons, and in doing so repair two of the IAU's blunders. Drawing and improving upon foundational work by Chen & Kipping, I describe a single,... 6174
Reposted by Kristian ClausESO @eso.org · 22/07/2026That's no moon. It's a...hang on, what should we call it? 🤔 Our VLT has revealed evidence for a moon-like object in the CD-35 2722 system. Yet this new ‘exomoon’ detection is challenging cosmic labels! 🔭 🧪 #exoplanets 1/4 511037
Kristian Claus @kristianclaus.bsky.social · 21/07/2026I just learned the meaning of Agamemnon’s Helmet. 🫥 000
Kristian Claus @kristianclaus.bsky.social · 17/07/2026Before seeing The Odyssey, do I need to read all 8 parts of the Epic Cycle? 000