Principle and experimental set-up. a, Schematic representation of energy exchange between an unbiased photodiode and a planar surface located in the far-field of the photodiode. b, Schematic description of photonic refrigeration in the near-field. Simultaneous enhancement of photon transport from tunnelling of evanescent waves and suppression of luminescence from a […]

Researchers have identified a second possible impact crater in northwest Greenland, just over 100 miles from the Hiawatha crater announced in November 2018. Last November, scientists’ minds were blown by the discovery of a 19-mile-wide crater under Greenland. The crater had been hiding in plain sight just 150 miles from a major […]

Under certain conditions, a reef can support either a thriving coral community or a lush seaweed field, depending on what it started with. Credit: Kai Kopecky, Russ Schmitt Tropical reefs are vulnerable ecosystems, sensitive to a variety of environmental conditions and disturbances, which can change their composition from vibrant coral […]

Artist rendition of a plasma jet impact (yellow) generating standing waves at the magnetopause boundary (blue) and in the magnetosphere (green). The outer group of four THEMIS probes witnessed the flapping of the magnetopause over each satellite in succession, confirming the expected behaviour/frequency of the theorised magnetopause eigenmode wave. Credit: […]