The microscope uses a combination of hardware and software-based adaptive optics to reconstruct object image — ScienceDaily

Non-invasive microscopic techniques such as optical coherence microscopy and two-photon microscopy are commonly used for in vivo imaging of living tissues. When light passes through turbid materials such as biological tissues, two types of light are generated: ballistic photons and multiply scattered photons. The ballistic photons travel straight through the object without experiencing any deflection and hence is used to reconstruct the object image. On the other hand, the multiply scattered photons are generated via random deflections as the light passes through the material and show up as speckle noise in the reconstructed image. As the light propagates through increasing distances, the ratio between multiply scattered and ballistic photons increases drastically, thereby obscuring the image information. In addition to the noise generated by the multiply scattered light, optical aberration of ballistic light also causes contrast reduction and image blur during the image reconstruction process.

Bone tissues in particular have numerous

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NASA: Mystery object is 54-year-old rocket, not asteroid

Scientists have confirmed that a mysterious object temporarily orbiting Earth is a 54-year-old rocket, not an asteroid after all

CAPE CANAVERAL, Fla. — A mysterious object temporarily orbiting Earth is a 54-year-old rocket, not an asteroid after all, astronomers confirmed Wednesday.

The object was classified as an asteroid after its discovery in September. But NASA’s top asteroid expert, Paul Chodas, quickly suspected it was the Centaur upper rocket stage from Surveyor 2, a failed 1966 moon-landing mission. Size estimates had put it in the range of the old Centaur, which was about 32 feet (10 meters) long and 10 feet (3 meters) in diameter.

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NASA determines mystery space object 2020 SO is a ’60s rocket booster

centaurupperstage1964

This photo from 1964 shows a Centaur upper-stage rocket. Space object 2020 SO is one of these.


NASA

Welcome back, Surveyor 2 Centaur rocket booster. We just got a new chapter in a bittersweet space saga that involves a fiery launch, a doomed moon mission and decades of space wanderings. 

A rocket booster NASA used to launch the Surveyor 2 lunar lander in 1966 has returned to us for a temporary spin as a mini-moon in orbit around Earth. When scientists spotted it in September, they named it 2020 SO. On Wednesday, NASA announced the strange object has been positively identified as the ’60s booster.

While the booster did its job admirably back in 1966, the lander didn’t survive a crash landing on the moon’s surface.   

The booster’s specific orbit around the sun tipped astronomers

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An Object Approaching Earth’s Orbit Is Not An Asteroid [Infographic]

The Pan-STARRS1 survey telescope on Maui has discovered an object that is headed for Earth’s orbit. This isn’t out of the ordinary except that this object is apparently not an asteroid. In fact, it may even be man-made. After studying the new object scientists concluded that it’s not dense enough to be a solid object. Which means it is probably hollow. This has led to the theory that this object might be the Centaur upper stage rocket booster that helped NASA’s Surveyor 2 reach the Moon in 1966.

Earlier this year in September the mysterious object was discovered and named 2020 SO. As astronomers continued to observe the object, they noticed that the Sun’s radiation was changing the object’s trajectory. This means that the object is most likely not an asteroid as radiation from the Sun would have a hard time pushing a solid object of this size. However, if

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Helicopter Pilots Spot Sci-Fi-Looking Object In Utah’s Red Rock Country : NPR

This monolith was discovered in rural Utah, but officials do not know its source or reason for being installed.

Utah Department of Public Safety


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Utah Department of Public Safety

This monolith was discovered in rural Utah, but officials do not know its source or reason for being installed.

Utah Department of Public Safety

State officials were flying over southeastern Utah looking for sheep as part of a routine task. Instead they found something straight out of a sci-fi movie.

From a helicopter, officers from the Utah Department of Public Safety spotted a large metal monolith — a single block of metal — last week. It was sitting in Utah’s Red Rock Country in the southeast. Officials have no idea how or when it got there — or who might have placed it.

“That’s been about the strangest thing that I’ve come across out there in all

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Expected as a technology for visualization of the invisible change of object surfaces such as stress intensity and distribution — ScienceDaily

Under JST Strategic Basic Research Programs, PRESTO researcher Ayumi Ishii, (Toin University of Yokohama, specially appointed lecturer) has developed a photodiode using a crystalline film composed of lead perovskite compounds with organic chiral molecules to detect circularly polarized light without a filter.

A technology to detect “polarization,” or oscillation direction of light can visualize object surfaces with damages, foreign objects, and distortions. Furthermore, detection of “circularly polarized light,” or rotating electric field of light makes it possible for us to identify stress intensity and distribution of objects. Conventional photodiodes for camera or sensor applications cannot detect polarization of light directly, and therefore, various types of filters must be attached on top of the device to separate the information of polarization spatially. These structures cause substantial losses of sensitivity and resolution in the light detection, especially detection of circularly polarized light is heretofore considered difficult. Thus, it has been much desired

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