Doris is a science journalist and Space.com contributor. She received a B.A. in Sociology and Communications at Fordham University in New York City. Her first work was published in collaboration with London Mining Network, where her love of science writing was born. Her passion for astronomy started as a kid when she helped her sister build a model solar system in the Bronx. She got her first shot at astronomy writing as a Space.com editorial intern and continues to write about all things cosmic for the website. Doris has also written about microscopic plant life for Scientific American’s website and about whale calls for their print magazine. She has also written about ancient humans for Inverse, with stories ranging from how to recreate Pompeii’s cuisine to how to map the Polynesian expansion through genomics. She currently shares her home with two rabbits. Follow her on twitter at @salazar_elin.
What it lacks in company it makes up for in character. According to the European Space Agency's description – it manages the iconic observatory alongside NASA – galaxy UGC 9391 is packed with two fascinating light sources: Cepheid variable stars and a Type IAThis full view of the spiral galaxy UGC 9391 as seen by the Hubble Space Telescope shows the isolated galaxy against a starry backdrop. Bright nearby stars have diffraction spikes with background galaxies as distant swirls.
"This image is from a set of Hubble observations which astronomers used to construct the 'Cosmic Distance Ladder' – a set of connected measurements that allow astronomers to determine how far the most distant astronomical objects are," ESA writes in the description.are those with changing brightness. Cepheids are a type called intrinsic, meaning it's not that, say, an object orbits the star and blocks its light occasionally.
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