This animation, provided by the Max-Planck Institute for Extraterrestrial Physics (MPE), shows the path of light inside GRAVITY+, an instrument and a large and complex upgrade to ESO’s Very Large ...

Very-long baseline interferometry (VLBI) is a technique in radio astronomy whereby multiple radio telescopes cooperate to ...

The successful creation of a guide star above the European Southern Observatory (ESO) Paranal site in Chile with freshly installed lasers marks a new era of interferometry, according to the ESO team.

Radio telescopes let you study the universe by collecting faint radio waves from distant objects. To see extremely small targets, such as the regions around supermassive black holes, those telescopes ...

Radio interferometric imaging represents a pivotal advance in astronomical observation by combining signals from distributed radio telescopes to synthesise high-resolution images of celestial objects.

KAIST researchers tested optical frequency comb lasers as reference signals for radio astronomy, aiming to synchronize radio telescopes with light-based timing in VLBI observations.

Since the resolution of a telescope depends on the wavelength size, radio telescopes have to be huge. It would take a radio dish nearly 10 kilometers wide to get the resolution of a large optical ...

This photograph shows four lasers at ESO’s Paranal Observatory, each one launched from one of the four eight-metre telescopes on site. The launch of these lasers represents a significant milestone for ...