A mirror on the James Webb Space Telescope was struck by a micrometeoroid last month but is expected to continue to function normally, NASA said Thursday.
Space Exploration
Jun 09, 2022
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With its mirror segments beautifully aligned and its scientific instruments undergoing calibration, NASA's James Webb Space Telescope is just weeks away from full operation. Soon after the first observations are revealed ...
Astronomy
May 27, 2022
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263
A new review looks at an important and often overlooked aspect of physics that suggested symmetry in the particle zoo and how it could be broken.
Quantum Physics
May 25, 2022
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Just about every car, train and plane that's been built since 1970 has been manufactured using high-power lasers that shoot a continuous beam of light. These lasers are strong enough to cut steel, precise enough to perform ...
Optics & Photonics
May 23, 2022
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315
The left hand looks like the right hand in the mirror but the left-handed glove does not fit on the right hand. Chirality refers to this property where the object cannot be superimposed on to the mirror image. This property ...
Optics & Photonics
May 03, 2022
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Alignment of NASA's James Webb Space Telescope is now complete. After full review, the observatory has been confirmed to be capable of capturing crisp, well-focused images with each of its four powerful onboard science instruments. ...
Space Exploration
Apr 28, 2022
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Toxeus magnus is a species of ant-mimicking jumping spider. It shows prolonged cohabitation between the mother and her adult female offspring in the natal nest, suggesting an extremely high level of subsociality.
Plants & Animals
Apr 22, 2022
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29
The Mid-Infrared Instrument (MIRI) on NASA's James Webb Space Telescope is now cooled by a gaseous helium cryocooler to under 7 Kelvin. With the cooler in its final state, the Webb team is operating the MIRI instrument this ...
Astronomy
Apr 21, 2022
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Technologies that depend on lightweight, high-precision optical systems, like space telescopes, X-ray mirrors, and display panels, have developed significantly over the past several decades, but more advanced progress has ...
Optics & Photonics
Apr 20, 2022
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77
The image dazzles from a computer screen in the corner of the room: six beams of red-orange light bursting from a luminous Milky Way star.
Space Exploration
Apr 18, 2022
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A mirror is an object that reflects light or sound in a way that preserves much of its original quality prior to its contact with the mirror. Some mirrors also filter out some wavelengths, while preserving other wavelengths in the reflection. This is different from other light-reflecting objects that do not preserve much of the original wave signal other than color and diffuse reflected light. The most familiar type of mirror is the plane mirror, which has a flat surface. Curved mirrors are also used, to produce magnified or diminished images or focus light or simply distort the reflected image.
Mirrors are commonly used for personal grooming or admiring oneself (in which case the archaic term looking-glass is sometimes still used), decoration, and architecture. Mirrors are also used in scientific apparatus such as telescopes and lasers, cameras, and industrial machinery. Most mirrors are designed for visible light; however, mirrors designed for other types of waves or other wavelengths of electromagnetic radiation are also used, especially in non-optical instruments.
This text uses material from Wikipedia, licensed under CC BY-SA
