エピソード

  • Fast radio bursts repeat on a 16-day cycle from space

    Fast radio bursts repeat on a 16-day cycle from space
    2026/06/06
    There’s a weird telescope in British Columbia called CHIME with zero moving parts—it doesn’t even point anywhere, it just sits there while Earth rotates and scans the whole sky. It was built to study dark energy, but it accidentally became an FRB machine, logging 500+ fast radio bursts: millisecond flashes from billions of light-years away, including FRB 20180916B that hits on a real 16-day cycle (4 days on, 12 off). The leading clue isn’t aliens—it’s a magnetar in our own galaxy (SGR 1935+2154) that fired an FRB-like burst, while the 16-day pattern is still an active fight between natural models like a binary orbit or a precessing jet.
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    11 分
  • Jupiter removes about a million asteroids from Earth's path

    Jupiter removes about a million asteroids from Earth's path
    2026/05/30
    Jupiter being Earth’s “guardian” is only half the story — the same gravity that carved the Kirkwood gaps can also shove asteroids into Earth-crossing orbits. Yes, it literally shredded Comet Shoemaker‑Levy 9 on camera in 1994 and likely helped drain the asteroid belt (Dawn data backs the long-term sculpting), but Jonathan Horner’s peer‑reviewed models say a smaller or differently placed Jupiter could mean fewer impacts on Earth. Between Grand Tack vs Nice model chaos and the messy Late Heavy Bombardment debate, Jupiter might be shield, threat, or both — and scientists still don’t agree which.
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    10 分
  • The grandfather paradox isn't actually a paradox at all

    The grandfather paradox isn't actually a paradox at all
    2026/05/23
    The grandfather paradox isn’t proof time travel is impossible — it’s proof that backward time travel plus unconstrained free will breaks logic. General relativity actually allows closed timelike curves (Gödel’s rotating-universe solution, plus Kip Thorne’s traversable wormhole work), and physicists have two clean “outs”: Novikov self-consistency (your past actions were always part of history, like Thorne’s wormhole billiard-ball math) or Deutsch’s many-worlds branching (Avengers: Endgame vibes, not Back to the Future). Hawking’s Chronology Protection Conjecture is basically the skeptical counterpunch: maybe nature blocks time machines in practice, but nobody can prove it without quantum gravity.
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    11 分
  • NASA's playbook: what happens in the first 72 hours

    NASA's playbook: what happens in the first 72 hours
    2026/05/21
    Humanity’s closest thing to a first-contact plan is a few-page, non-binding SETI Post-Detection Protocol: verify the signal, tell the IAA/IAU and the UN Secretary-General, and don’t reply without “international consultation.” Problem: it’s basically a gentlemen’s agreement (Jill Tarter’s words), UNOOSA has no first-contact mandate, there’s no timeline, and nobody’s actually named as having authority to speak for Earth. Meanwhile the protocol mostly covers radio signals — not weird physical stuff like Oumuamua, which was spotted after it passed the Sun and sparked peer-reviewed debate (including Avi Loeb arguing an artificial origin couldn’t be ruled out). In 2026 terms, a private lab, company, or even a grad student could find something first and go public or transmit a message with zero legal barrier.
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    12 分
  • AARO reviewed 750 UAP cases and found no extraterrestrial technology

    AARO reviewed 750 UAP cases and found no extraterrestrial technology
    2026/05/09
    The guy who literally ran the Pentagon’s UFO office (AARO), physicist/intel vet Sean Kirkpatrick, says the big “aliens being interviewed” document doesn’t exist anywhere — not classified, not hidden, not pending. Meanwhile the new UAP/UFO file dump is being hyped like instant disclosure, but it’s mostly a “start the review process” directive plus AARO’s 2024 finding: 750+ sightings logged, some still unresolved, and zero evidence of extraterrestrial tech or beings.
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    11 分
  • Proxima B A Nearby World Awaiting Discovery

    Proxima B A Nearby World Awaiting Discovery
    2026/05/02
    Meet Proxima b: a 1.3-Earth-mass rock just 4.2 light-years away, whipping around a red dwarf every 11 days—likely eternal day on one side, night on the other. Astronomers spotted it in Proxima Centauri’s wobble (radial velocity), led by Guillem Anglada-Escudé—not by a direct image. It’s in the habitable zone but blasted by ~250x Earth’s X-rays; Breakthrough Starshot wants 0.2c chip-size laser sails to fly by and beam back pictures in about 24 years.
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    11 分
  • Observation Shapes Quantum Outcomes In The Double Slit

    Observation Shapes Quantum Outcomes In The Double Slit
    2026/04/25
    One electron, two slits: the double-slit experiment builds a wave-like interference pattern—until you add a which-path detector and the stripes vanish. Reality acts shy. This piece tours superposition, the observer effect, delayed-choice twists, decoherence (why your cat isn’t smeared), and how entanglement powers quantum computers and quantum encryption. It even pokes the big one—does consciousness collapse the wave function, or is information the real bedrock of reality?
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    15 分
  • Breakthrough Listen Scanning The Sky For Alien Technosignatures

    Breakthrough Listen Scanning The Sky For Alien Technosignatures
    2026/04/19
    Alien radio waves could be passing through you right now — and a $100M SETI push is scanning 1M stars and 100 galaxies for technosignatures. Think 500‑ft Green Bank so sensitive it could hear a cell phone on Mars, petabytes of cosmic static, a 72‑second Wow Signal, and the brutal lag: a message from 500 light‑years means 1,000 years per back‑and‑forth.
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    11 分