Virgin Galactic is aiming for early August for its next flight to the edge of space, a trip that is expected to include the first of many ticket holders who have been waiting years for their chance at weightlessness aboard ...
Space Exploration
Jul 13, 2023
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The echoes of light from jets launched from black holes offers a new way to pin down the distance to these exotic objects and to study a largely unobserved population in the center of the Galaxy. It could also even help determine ...
Astronomy
Jul 5, 2023
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An optical spectrometer is an instrument used to measure properties of light over a specific portion of the light spectrum. These devices have found a wide range of practical applications. Dispersive optical elements (e.g., ...
Optics & Photonics
May 8, 2023
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5
NASA's James Webb Space Telescope has many different observing modes to study planets orbiting other stars, known as exoplanets. One way in particular is that Webb can directly detect some of these planets. Directly detecting ...
Astronomy
Mar 27, 2023
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NASA marked the 20th anniversary of the space shuttle Columbia tragedy with somber ceremonies and remembrances during its annual tribute to fallen astronauts on Thursday.
Space Exploration
Jan 26, 2023
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British officials and space scientists said Tuesday they were disappointed but not deterred after the first attempt to launch satellites into orbit from the U.K. ended in failure.
Space Exploration
Jan 10, 2023
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16
When the nuclei of atoms are about to collide in an experiment, their centers never perfectly align along the direction of relative motion. This leads to collisions with complex three-dimensional geometry. Emissions from ...
General Physics
Dec 19, 2022
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In biological imaging, researchers aim to achieve 3D, high-speed, and high-resolution, with low photobleaching and phototoxicity. The light-sheet fluorescence microscope (LSFM) helps meet that aim. Based on a unique excitation ...
Optics & Photonics
Dec 5, 2022
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7
The international collaboration developing the Prime Focus Spectrograph (PFS) has marked a significant testing milestone by successfully taking spectra of targeted stars.
Astronomy
Nov 11, 2022
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40
All stars are composed of mostly hydrogen and helium, but most stars also have measurable amounts of heavier elements, which astronomers lump into the category of "metals." Our sun has more metals than most stars because ...
Astronomy
Nov 8, 2022
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