Earth's atmosphere is an impediment to astronomical observations. Not only is cloudy weather a problem, but temperature fluctuations in the atmosphere mean that ground-based telescopes require ...

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 ...

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 ...

Very Long Baseline Interferometry (VLBI) is a unique measurement technique designed for high angular resolution observations in astronomy and geodesy, which relies on the simultaneous observation of ...

The first findings from Georgia State University’s CHARA Array at the Mount Wilson Observatory appeared 20 years ago this month ATLANTA — Georgia State University’s Center for High Angular Resolution ...

The past 80 years have been the most revolutionary period in the history of astronomy. New technologies have opened the sky across the electromagnetic spectrum, from low-frequency radio waves 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.

For astronomers, one of the greatest challenges is capturing images of objects and phenomena that are difficult to see using optical (or visible light) telescopes. This problem has been largely ...

Astronomy is one of the most ancient sciences that humanity has ever pursued. Since the dawn of civilisation, mankind has gazed at the night sky, awed and inspired by its black emptiness, the apparent ...