Test & Measurement

Illustration: Rohan Naidu/ University of Hawai’i
Stars like our Sun (left) may be thought of as a dense ball of gas powered by nuclear fusion. Black holes (center) typically grow by consuming matter via pancake-like accretion disks. Black Hole Stars (right) represent a new kind of astrophysical object—black holes enshrouded in dense gas so they effectively radiate in a star-like manner. The dense envelope of gas gives the black hole its star-like features. Black Hole Stars are >100,000 times larger than the Sun (~1000 au vs. ~0.01 au), but span a size similar to black hole accretion disks.
Astronomers discover an extremely bright ‘Little Red Dot’ within the earliest galaxies of the Universe—dating back a few hundred million years after the Big Bang—and it appears...
Aug. 17, 2026
Credit: Christopher R. Shelton
VAR Lab researchers capture the Liberty Bell with a Canon EOS R5 Mark II for documentation and photogrammetry during one of three limited-access scanning sessions inside the Liberty Bell Center.
Aug. 17, 2026
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Following the Photons: A Photonics Podcast
Aug. 11, 2026
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Aug. 3, 2026
Credit: ESA
FIGURE 1. LISA will use three spacecraft separated by ~2.5 million kilometers to exchange laser beams and detect low-frequency gravitational waves.
July 31, 2026
Credit: STMicroelectronics
Combined multi-zone distance and infrared monitoring enhance flexibility to design powerful system features.
July 20, 2026
Credit: Thomas Walker
To build a quantum sensor, light must be prepared in a carefully controlled state where its frequency, polarization, and intensity are well controlled. The polarization of blue light is altered before it’s used to cool the atoms to near absolute zero.
July 16, 2026
Credit: Ommatidia LiDAR
Ommatidia LiDAR’s Q2 laser radar deployed for noncontact field measurement.
July 14, 2026
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Following the Photons: A Photonics Podcast
July 7, 2026

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