By tracking these stars back to where they came from, scientists can map the gravitational field of the Milky Way. This helps ...

Many, perhaps most, stars in the universe live their lives with companions by their sides in so-called binary systems. Until recently, however, the ancient RR Lyrae stars appeared, for mysterious ...

Four new type-ab RR Lyrae variables that belong to the field of the LMC were found in the direction of NGC 1466; a possible field variable was found near the Reticulum system. A King model that fits ...

Publications of the Astronomical Society of the Pacific, Vol. 109, No. 741 (1997 November), pp. 1221-1232 (12 pages) Strömgren uvbyß photometry of SX Phoenicis and large-amplitude δ Scuti variables is ...

POTSDAM, Germany, April 22 (UPI) --The Milky Way hosts several generations of stars. Finding the really old ones -- the stars that witnessed the birth and early evolution of the galaxy -- isn't easy.

Astronomers have discovered more than 200 distant variable stars known as RR Lyrae stars in the Milky Way’s stellar halo. The most distant of these stars is more than a million light years from Earth, ...

RR Lyrae stars are used as distance indicators ("cosmic lighthouses") and tracers of galactic evolution. Frequencies of the southern RR Lyrae star SS For were converted into sound by Elisabeth ...

Ancient stars, of a type known as RR Lyrae, have been discovered in the centre of the Milky Way for the first time, using ESO’s infrared VISTA telescope. RR Lyrae stars typically reside in ancient ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

The findings are based on data from the Next Generation Virgo Cluster Survey (NGVS), a program using the Canada-France-Hawaii Telescope (CFHT) to study a cluster of galaxies well beyond the Milky Way.

Many, perhaps most, stars in the Universe live their lives with companions by their sides – in so-called binary systems. Until recently, however, the ancient RR Lyrae stars appeared, for mysterious ...