Stellar intensity interferometry is a powerful observational technique that exploits second-order coherence properties of starlight to achieve extremely high angular resolution. Building on the ...

The James Webb Space Telescope reveals active volcanoes on Io in unprecedented detail thanks to an innovative technique.

Last week, four lasers were projected into the sky above the European Southern Observatory (ESO) Paranal site in Chile. The lasers successfully created an "artificial star" that astronomers can use to ...

Purdue faculty dedicate countless hours to exploring the frontiers of their respective fields, pushing the boundaries of knowledge and contributing to the ever-evolving landscape of academia. To ...

Researchers in the US have demonstrated how quantum entanglement could be used to detect optical signals from astronomical ...

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.

The GRAVITY instrument on ESO’s Very Large Telescope Interferometer (VLTI) has made the first direct observation of an exoplanet using optical interferometry. This method revealed a complex ...

For more than 400 years, astronomers both professional and amateur have taken a special interest in observing Mira stars, a class of variable red giants famous for pulsations that last for 80-1,000 ...

When you look at the night sky, do you ever wonder what's going on out there? On a clear night with a dark sky, if moonlight doesn't wash it out, sometimes you can see the arc of the Milky Way. The ...

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 ...

After years of investments, African telescopes are emerging as global leaders in frontier astronomy. From South Africa’s MeerKAT capturing the universe’s most distant gigamaser to Ghana’s radio ...

Consider this: astronomers think of the Hubble Space Telescope as small. That might surprise you because after three decades' worth of images from Hubble with depth and detail most ground-based ...