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Year I · No. 75
— Natura non facit saltus —
Monday, 3 Aug 2026

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· Applied Physics · 03 · 08 · 2026

Robust field-free superconducting diode effect observed in FeTeSe

Scientists have observed a robust superconducting diode effect, meaning a preferential current conductance in one direction, in the material FeTe₀.₅₅Se₀.₄₅. The most notable aspect of this finding is that the effect occurs without the need for an external magnetic field, a characteristic that distinguishes it from most superconducting diode effects reported to date.…

§ Today’s briefing

5 dispatches · 03 · 08 · 2026
· Astrophysics

Fire Rainbow over West Virginia

NASA has highlighted an image of a fire rainbow, or circumhorizontal arc, captured over West Virginia.… more →

NASACol. 2
· Astrophysics

APOD Features 'Buck Moon' and Belt of Venus

NASA's Astronomy Picture of the Day (APOD) has featured a photograph capturing the "Buck Moon" alongside the atmospheric phenomenon known as the Belt of Venus.… more →

NASACol. 3

Vaporizing Meteor Photobombs the Lacerta Nebula

An Astronomy Picture of the Day (APOD) has captured an unusual event: a vaporizing meteor streaking across the field of view of the Lacerta Nebula. This phenomenon, though serendipitous, offers a unique perspective on the interaction of small objects within our solar system against the backdrop of much more distant galactic structures.

The photograph shows the bright trail left by the meteor as it enters Earth's atmosphere, a process that generates intense light due to friction and the subsequent vaporization of the material. The coincidence of this event with the observation of the Lacerta Nebula underscores the dynamic and often unpredictable nature of astronomical observations, where transient phenomena can superimpose themselves on stable celestial objects.

An Astronomy Picture of the Day (APOD) has captured an unusual event: a vaporizing meteor streaking across the field of view of the Lacerta Nebula.
§ Technical sheet
Source
NASA
Category
Astrophysics
Edition
75
Date
2026-08-03
Reading
1 min
Origin
Source ↗

§ arXiv briefing

— ex praeprintis hodiernis —
  1. 2607.29492 · teoria

    't Hooft-Polyakov Monopoles as Dark Matter with Cosmological Signature

  2. 2607.29350 · teoria

    Deviations of Circular Orbits in Relativity and the Shirokov Effect

  3. 2607.29686 · cuantica

    Online Quantum Shadow Tomography Achieves Classical Efficiency Bounds

  4. 2607.29388 · astrofisica

    Halbach Magnetic Weber Bars for Gravitational Wave Detection

  5. 2607.29672 · teoria

    Kikuchi Hierarchy Achieves Sharp Theoretical Bound for kXOR Problems

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