Ceres, the largest asteroid in our solar system, harbors a dark secret: extremely young ice deposits in permanently shadowed craters near its poles. If that sounds vaguely familiar, it's because our moon and planet Mercury ...
Planetary Sciences
Apr 16, 2024
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109
US space scientists on Thursday unveiled the interplanetary probe NASA plans to send to one of Jupiter's icy moons as part of humanity's hunt for extra-terrestrial life.
Space Exploration
Apr 12, 2024
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485
Researchers using Murriyang, CSIRO's Parkes radio telescope, have detected unusual radio pulses from a previously dormant star with a powerful magnetic field.
Astronomy
Apr 8, 2024
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79
Scientists have used electrical pulses to manipulate magnetic information into a polarized light signal, a discovery that could revolutionize long-distance optical telecommunications, including between Earth and Mars.
Condensed Matter
Mar 28, 2024
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138
Quantum imaging is a growing field that takes advantage of the counterintuitive and "spooky" ability of light particles, or photons, to become linked, or entangled, under specialized circumstances. If the state of one photon ...
Optics & Photonics
Mar 20, 2024
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54
The fourth global coral bleaching event, announced this week, is an urgent wake-up call to the world.
Plants & Animals
Apr 17, 2024
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7
When darkness falls on central Ohio during the total solar eclipse on April 8, will animals think it's time to go to bed? Will they be anxious? Will they care?
Plants & Animals
Mar 22, 2024
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2
A polarizer is an optical filter that passes light of a specific polarization and blocks waves of other polarizations. It can convert a beam of light of undefined or mixed polarization into a beam with well-defined polarization. The common types of polarizers are linear polarizers and circular polarizers. Polarizers are used in many optical techniques and instruments, and polarizing filters find applications in photography and liquid crystal display technology. Polarizers can also be made for other types of electromagnetic waves besides light, such as radio waves, microwaves, and X-rays.
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