Next #SETILive: Where Water Boils the Sky
TODAY, 13 November, 2:30 pm PST
Today, host Beth Johnson talks with Artem Aguichine (UCSC) about his new research modeling the interiors and atmospheres of steam worlds—a class of water-rich sub-Neptunes that could dominate our galaxy. With data from the JWST revealing steam signatures on distant planets, these models are helping scientists decode what’s really going on beneath the haze.
WATCH LIVE: https://youtube.com/live/nBpyGdXkuXo
#PPOD: The interaction of two doomed stars has created this spectacular ring adorned with bright clumps of gas – a diamond necklace of cosmic proportions. Fittingly known as the “Necklace Nebula,” this planetary nebula is located 15,000 light-years away from Earth in the small, dim constellation of Sagitta (the Arrow). Credit: ESA/Hubble & NASA, K. Noll
For the first time ever, astronomers have unveiled the shape of a star’s explosion at its earliest stage.
The feat was achieved by ESO's Very Large Telescope just a day after the detection of this supernova, as the blast was breaking through the star’s surface.
This brief initial phase wouldn’t have been observable a day later. This will help shed light on how massive stars go supernova.
https://www.eso.org/public/news/eso2520/
Illustration: ESO/L. Calçada
Dr. Matt Tiscareno studies how things move in the solar system. He led the discovery of small moons embedded in Saturn’s rings, seen indirectly by the propeller-shaped disturbances they create in the surrounding ring material.
Dr. Tiscareno is also interested in how moons rotate. He was part of a team that used a tiny wobble in the rotation of Saturn’s moon Enceladus to prove that the moon’s subsurface water extends globally as a subsurface ocean.
#ICYMI: This week on #SETILive, Simon Steel chatted with scientists Manuel Scherf and Helmut Lammer about what makes Earth so special that intelligent life evolved and how those circumstances may lower the chances of similar life developing on another world. Watch the full interview: https://youtube.com/live/qy8spTZpTNI
In der neuen Folge erzählt Franzi vom Ende des Universums. Denn dass es irgendwann zu Ende geht, daran besteht kein Zweifel. Wie genau das passiert, da gibt es noch ein paar offene Fragen.
➡️ https://astrogeo.de/aus-und-vorbei-das-universum-und-sein-ende/
PS: Big Rip ist kein Hamburger. 🍔
📷 : ESO
Next #SETILive: The Moon that Could Support Life
TODAY, 20 November, 11 am PST / 2 pm EST
Join host Beth Johnson for a fascinating episode of SETI Live, featuring planetary scientists Dr Georgina Miles and Dr Carly Howett from the University of Oxford. We’ll be unpacking their groundbreaking study showing that Enceladus — one of Saturn’s icy moons — may harbor a stable subsurface ocean capable of supporting life.
WATCH LIVE: https://youtube.com/live/fDf0VQ_S-Bs
On our latest #SETILive #podcast, Dr Carly Howett from the University of Oxford explains the kinds of Earth analogues that may exist for the subsurface ocean environment of Enceladus. Hydrothermal vents, anyone? Listen to the full episode: https://feeds.libsyn.com/462636/rss
Look at little Mercury transiting in front of the Sun! This scene wasn't visible from Earth, but NASA's STEREO A spacecraft caught it on April 7.
(The video is greatly sped up; the actual event took several hours.)
In a recent #SETILive episode, host Beth Johnson spoke with UC Santa Cruz postdoctoral researcher Dr. Artem Aguichine about his work modeling the interiors and atmospheres of steam worlds, a class of water-rich exoplanets wrapped in thick, high-temperature water vapor. Thanks to new spectra from the James Webb Space Telescope (JWST), these once-theoretical worlds are rapidly becoming an observational reality.
Learn more: https://www.seti.org/news/where-water-boils-the-sky-steam-worlds-and-the-search-for-life/
I love changing my #perspective by slipping into the most impossible roles. It helps me see everyday things with new eyes. When I became this cute little green #alien, this is the result:
🐸 a downloadable mini #zine as #HowTo #shift your perspective: https://ko-fi.com/s/700d3d3138
🌱 a photo reportage about a #space #moss #expedition: https://steady.page/en/naturematchcuts/posts/d242349d-fa59-4af8-a834-c93d580a4039
🐸 more infos about #zines and how to fold them: https://www.cronenburg.net/zines/
#reciprocity #natureWriting #nature #solarpunk #cartoon #education
In our most recent #SETILive #podcast, we met the show's newest host, Dr. Moiya McTier, who gave us the lore on her science and communication background. Listen to the full episode: https://feeds.libsyn.com/462636/rss
What do planet formation and badminton have in common?
From @ArsTechnica: "Dust grains in protoplanetary disks align via the same aerodynamics as the sport."
See the full paper here: https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stae2248/7783265?login=false
For more space news, follow @space-ScienceAlert
A new moon. An interstellar comet. An intriguing biosignature. An advance in signal detection. And so much more!
Across the SETI Institute, this year brought remarkable progress in our search for life and our understanding of the cosmos. We developed new techniques, expanded our datasets, and made discoveries that will shape the work ahead in meaningful ways.
JWST has delivered one of the most detailed looks yet at how moons form around young planetary bodies. In a recent SETI Live conversation, host Dr. Moiya McTier spoke with University of Zürich research fellow Dr. Gabriele Cugno and Carnegie Institution for Science postdoctoral fellow Dr. Sierra L. Grant about their analysis of CT Cha b – a distant, planetary-mass companion surrounded by a compact moon-forming disk.
Learn more: https://www.seti.org/news/baby-moons-in-the-making-the-discovery-of-a-moon-forming-disk/
Comet 3I/ATLAS passed through the inner solar system on a one-time trajectory, entering a brief but consequential observational gap. During this interval, the object moved behind the Sun from Earth’s perspective.
In a recent #SETILive discussion, Beth Johnson and Dr. Cynthia Phillips discussed how an instrument built for a very different target was rapidly repurposed to study one of the rarest objects ever detected in the solar system.
Learn more: https://www.seti.org/news/3iatlas-caught-in-uv-what-europa-clipper-saw-when-no-one-else-could/
The European Space Agency's Euclid space telescope is assembling the largest 3D map of the universe ever made.
The first section is now complete. Take a look at what happens when you zoom in...
https://www.esa.int/Science_Exploration/Space_Science/Euclid/Zoom_into_the_first_page_of_ESA_Euclid_s_great_cosmic_atlas #space #science #astronomy #nature
President #JimmyCarter created this message to travel on Voyager 1. It's still out there traveling at 40,000 mph, looking for a cosmic community to catch it and play the media.
“We’re Too Close to the Debris”: How SpaceX Rockets Put Passenger Planes at Risk
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The FAA predicted Elon Musk’s Starship would cause “minor or minimal” disruption. Then the rockets exploded twice in three months over busy airspace. Flight data reveals how many planes scrambled to protect passengers and avoid burning debris.
https://www.propublica.org/article/spacex-faa-launch-airlines-safety-explosions-florida-caribbean?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon-post
#News #ElonMusk #SpaceX #Starship #Aviation #Space #Safety #Musk
Next #SETILive: What to Expect in Space Science 2026
TODAY, 8 January, 2:30 PST
2026 is shaping up to be a pivotal year for space science.
This livestream will explore the major missions, discoveries, and milestones happening this year—from crewed lunar exploration to new space telescopes and planetary science. We’ll talk about what these missions are designed to discover and why they matter.
Join us live and bring your questions: https://youtube.com/live/3AK28FH1b3Y
Dr. Souvik Bose focuses on unravelling the dynamics of the solar atmosphere with coordinated high-resolution ground- and space-based observations, using instruments on NASA’s IRIS, SDO and NASA-JAXA’s Hinode missions, among others.
Dr. Bose also works on computing synthetic observations from high-resolution MHD simulation snapshots using a variety of radiative transfer codes. He is involved in the data modeling and development of the upcoming MUSE mission.
Quick reminder that NASA currently has a solar sail in Earth orbit, flapping its wings in the flow of sunshine.
https://blogs.nasa.gov/smallsatellites/2024/10/22/update-on-nasas-advanced-composite-solar-sail-system/ #space #science #nasa #tech
