Identifying the formation period of planetary systems, such as our solar system, could be the beginning of the journey to discover the origin of life.
The key to this is the unique substructures found in protoplanetary disks—the sites of #planet formation.
A protoplanetary disk is composed of low-temperature molecular gas and dust, surrounding a #protostar.
If a planet exists in the disk, its #gravity will gather or eject materials within the disk, forming characteristic substructures such as rings or spirals. In other words, various disk substructures can be interpreted as "messages" from the forming #planets.
#astronomy #exoplanets
https://phys.org/news/2025-06-super-resolution-imaging-reveals-planet.html
Niitä elokuvia on todella vähän, joita haluan katsoa useammin kuin kerran. Niitä on vielä vähemmän, joita hauan katsoa yli kaksi kertaa.
Gravity kuuluu niihin harvoihin elokuviin, jotka olen nähnyt useamman kerran ja silti tekisi mieli katsoa se uudelleen. Se on yksi suosikkielokuviani koskaan.
Sen lisäksi, että se on audiovisuaalisesti aivan uskomaton teos, se on myös kiehtova tarina ihmisten kyvystä selviytyä ylitsepääsemättömistä vaikeuksista. Se on tarina ahdistuksesta, masennuksesta ja menetyksestä.
Itselleni elokuvan katseleminen on kokemuksena ahdistava, mutta se on hallittua ahdistusta. Hyvää ahdistusta, jos niin voi sanoa. Pään sisäistä repimistä vahvistaa elokuvan timanttinen äänisuunnittelu ja mahtava musiikki.
Jos et ole nähnyt elokuvaa, suosittelen katsomaan!
Video on pätkä elokuvan avauskohtauksesta, joka kestää katkeamattomana yli 13 minuuttia. Itsellä alkaa pumppu kiihdyttämään tahtia pelkästään tuon katsomisesta
#Gravity #MichaelJohnston
Here's a cute little catchy gay love song from the Actor Michael Johnston from the series Teen Wolf and the film Slash. I don't think it made it into the Pride Playlists I've been posting. I think it's adorable.
Michael Johnston - Gravity (Official Music Video)
https://youtu.be/-yAOB28qH9Q?si=jxsd3iwtIYsM4_Nu
!physics Barycentric Dynamic Equilibrium Theory (fly-by Δv < 3 mm s⁻¹).
PDF https://zenodo.org/record/15392179/files/BDET_preprint_v1_1.pdf?download=1
New pre-print: “Barycentric Dynamic Equilibrium Theory — A Unified Framework for Gravitational Coupling & Complex-Systems Dynamics.”
Predicts the flyby anomaly (<3 % error) and links local inertial frames to cosmic barycentric motion.
PDF https://zenodo.org/records/15392179/files/BDET_sup_v1_1.pdf?download=1
#FlybyAnomaly #Gravity #ComplexSystems #OpenScience
@openscience
Wide binary #stars with separation greater than about 2000 AU are interesting natural laboratories that allow a direct probe of #gravity at low acceleration weaker than about 1 nanometer per second squared.
Now, astrophysicists have developed a new method of measuring gravity with all three components of the velocities (3D velocities) of stars, as a major improvement over existing statistical methods.
For wide binaries whose stars orbit each other with an internal acceleration greater than about 10 nm/s², the inferred gravity is precisely Newtonian, but for an internal acceleration lower than about 1 nm/s² (or separation greater than about 2000 AU), the inferred gravity is about 40% to 50% stronger than Newton.
The significance of the deviation is 4.2-sigma, meaning that standard gravity is outside the 99.997% probability range.
What is striking is that the deviation agrees with the generic prediction of modified gravity theories under the theoretical framework called modified Newtonian dynamics (#MOND), sometimes referred to as Milgromian dynamics.
#astronomy #cosmology
https://phys.org/news/2025-05-3d-velocity-analysis-wide-binaries.html
https://www.europesays.com/uk/134738/ Lasers Cool Down the Gravity Debate | Research & Technology | May 2025 #cooling #gravity #lasers #metrology #MIT #oscillator #Physics #Research&Technology #Science #Test&Measurement #TorsionPendulum #UK #UnitedKingdom
Planck stars.
[paper] #astronomy #astrophysics #physics #gravity
https://arxiv.org/pdf/1401.6562
Lack of ballast would be my guess.
Scientists propose a bold new concept that could change our understanding of gravity. It’s a major blow to Einstein’s theory of gravity and a step towards solving one of the greatest puzzles.
https://www.news-cafe.eu/?go=news&n=13659
#space #einstein #universe #cosmos #gravity #science #research #astronomy
Gravity is one of the basic forces of nature that keeps the universe stitched together. Right? But, writes Melvin Vopson, suppose the law of gravity “is simply an echo of something more fundamental: a byproduct of the universe operating under a computer-like code.” It’s a scary thought, but the associate professor of physics explores it in this article for @TheConversationUS:
The wisdom of this cuddle huddle is debatable. #catsofmastodon #gravity
https://www.europesays.com/uk/77997/ Physicists Develop Novel Quantum Theory of Gravity #gravity #Physics #QuantumGravity #Science #StandardModel #TheoryOfEverything #UK #UnitedKingdom #Universe
For those with an artistic streak, #GR24Amaldi16 will be hosting an art science exhibition.
We welcome submissions inspired by the themes of the meeting (#Cosmology, #BlackHoles, #Gravity, #GravitationalWaves, #Astrophysics)/ Anyone can submit!
https://www.europesays.com/uk/60623/ Is Gravity The Code? New Theory Suggests The Universe Is A Giant Quantum Computer #ComputationalProcesses #gravity #information #matter #Physics #QuantumComputer #Science #Simulation #UK #UnitedKingdom #Universe
(27 Apr) A Massive Underwater Volcano Literally Shook the Edge of Space
New research shows the blast triggered secondary gravity waves that rattled the upper atmosphere, where satellites orbit.
https://s.faithcollapsing.com/i8l70
Archive: ia: https://s.faithcollapsing.com/o6npf
#atmospheric-science #earth-science #gravity #volcanic-eruptions