"The explosions of white dwarfs play a crucial role in astronomy," stated Priyam Das, a PhD student at the University of New South Wales Canberra and study leader. Das further described the findings ...

A handy addition to your toolbox, the best laser tape measure delivers measurements instantly. Our product testing team tried ...

This paper presents a new distance for measuring shape dissimilarity between objects. Recent publications introduced the use of eigenvalues of the Laplace operator as compact shape descriptors. Here, ...

Optics 11 claims its underwater surveillance system can keep constant tabs on ships while remaining undetected.

A novel fiber Bragg grating (FBG) sensor configuration using three broadband light sources of different wavelength bands for the interrogation of FBG sensors distributed over 75 km of fiber is ...

Precision sensor supplier Micro-Epsilon has extended its non-contact laser distance sensor portfolio with a low cost unit that is even more robust and compact than its predecessor measuring distances ...

Scientists have discovered that something is making cosmic distance markers appear much farther away than they should be.

A new solid-state laser can make a vast number of precise optical measurements each second, while sweeping across a broad ...

The researchers analyzed satellite data on the open ocean collected from 2003 to 2022 by a NASA instrument that combs through the planet every two days to measure light wavelength, according to ...

But we will get a real reminder of the vast distance and incredible speed of light in early 2027, when Voyager 1 becomes the first human-made object to reach one light-day away from the Sun.

It's an impressive feat for Bogong moths, whose brains are smaller than the size of a grain of rice, to rely on the night sky ...

Explained: light’s ability to travel vast cosmic distances without losing energy When light travels unimpeded, it loses no energy. It can maintain that 300,000-km-per-second speed forever ...