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Year I · No. 139
— Natura non facit saltus —
Tuesday, 20 Oct 2026

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· Applied Physics · 20 · 10 · 2026

Lindhard continuum observed directly for the first time with X-rays

A resonant inelastic X-ray scattering experiment has made it possible to observe the Lindhard continuum directly, the theoretical signature of collective electron excitations in a metal. It is the first direct detection of this structure, predicted decades ago by Jens Lindhard as part of his description of the interacting electron gas, but until now out of reach of conventional spectroscopic techniques.

§ Today’s briefing

5 dispatches · 20 · 10 · 2026

ESA image shows where winds blow and lava flows

The European Space Agency (ESA) has published an image titled «Where winds blow and lava flows», a outreach piece combining observations of atmospheric and volcanic phenomena in a single planetary setting. The photograph is part of the agency's multimedia collection and is available in its digital archive.

The material released by ESA includes no technical data, no coordinates of the observed celestial body and no details about the instrument or mission responsible for the capture. The image is accompanied only by its title and a brief description, with no press release or additional scientific context.

“The photograph is part of the agency's multimedia collection and is available in its digital archive.”
§ Technical sheet
Source
ESA
Category
Astrophysics
Edition
Nº 139
Date
2026-10-20
Reading
1 min
Origin
Source ↗

§ arXiv briefing

— ex praeprintis hodiernis —
  1. 2610.26792 · cuantica

    First observation of weak magnetism in neutron decay

  2. 2610.26753 · cuantica

    General master equation for two accelerated detectors and their entanglement

  3. 2610.26750 · cuantica

    Two-loop renormalization constants of Feynman gauge QED computed analytically

  4. 2610.26621 · cuantica

    Elliptic flow in heavy-ion collisions departs from linear response

  5. 2610.26727 · astrofisica

    TianQin: standard sirens point to dynamical dark energy

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