Science

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Researchers pin down a quantum mechanical anomaly in electromagnetism

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Figure 1. Under electromagnetic duality, an electrically charged particle is mapped to a magnetic monopole, and vice versa. The form of the Maxwell equations is preserved by this operation.

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Unusual ozone hole opens over the Arctic

Scientists using data from the Copernicus Sentinel-5P satellite have noticed a strong reduction of ozone concentrations over the Arctic. Unusual atmospheric conditions, including freezing temperatures in the stratosphere, have led ozone levels to plummet – causing a ‘mini-hole’ in the ozone layer.

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Unusual ozone hole opens over the Arctic.

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What Makes Saturn's Upper Atmosphere So Hot

New mapping of the giant planet's upper atmosphere reveals a likely reason why it's so hot.

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Saturn and it's aurora.

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Something is Lurking in the Heart of Quasar 3C 279

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Illustration of multiwavelength 3C 279 jet structure in April 2017. The observing epochs, arrays, and wavelengths are noted at each panel.

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UNESCO mobilizes 122 countries to promote open science and reinforced cooperation in the face of COVID-19

UNESCO on 30 March hosted an online meeting of representatives of ministries in charge of science all over the world. Participants included 77 ministers, including governmental secretaries representing a total of 122 countries, as well as Mariya Gabriel, European Commissioner for Innovation, Research, Culture, Education and Youth, Sarah Anyang Agbor, African Union Commissioner for Human Resources, Science and Technology, Moisés Omar Halleslevens Acevedo, former Vice President of Nicaragua and Dr Soumya Swaminathan, the World Health Organization’s Chief Scientist.

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Astronomers Detect First Double Helium-Core White Dwarf Gravitational Wave Source

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Astronomers Detect First Double Helium-Core White Dwarf Gravitational Wave Source

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Why is BepiColombo back?

BepiColombo is on its way to Mercury, but for some reason that brings it back to Earth.

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Messenger’s iridescent Mercury.

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A Puzzling Geometry Conundrum

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A Puzzling Geometry Conundrum

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Compelling New Evidence for a Middleweight Black Hole

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Artist’s illustration of a tidal disruption event, in which a black hole tears apart a passing star and lights up as it accretes the stellar material.

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WFIRST Will Use Warped Space-time to Help Find Exoplanets

The NASA mission will identify planets with large orbits, similar to our solar system's far-flung giants, Uranus and Neptune.

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WFIRST will make its microlensing observations in the direction of the center of the Milky Way galaxy. The higher density of stars will yield more exoplanet detections.