Hubble weighs in on mass of three million billion suns

In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion suns—so it's little wonder that it has earned the nickname of ...

Dark Energy Survey publicly releases first three years of data

At a special session held during the American Astronomical Society meeting in Washington, D.C., scientists on the Dark Energy Survey (DES) announced today the public release of their first three years of data. This first ...

A new twist in the dark matter tale

An innovative interpretation of X-ray data from a cluster of galaxies could help scientists fulfill a quest they have been on for decades: determining the nature of dark matter.

Best of Last Year—The top Phys.org articles of 2017

It was another great year for science, particularly physics, as evidenced by a study conducted by U.K., Canadian and Italian researchers who revealed substantial evidence of a holographic universe. They published what is ...

The Keck Cosmic Reionization Mapper

The design for the Keck Cosmic Web Imager (KCWI) includes two separate channels to detect light in the blue (350 to 560 nm) and the red (530 nm to 1050 nm) portions of the visible wavelength spectrum. KCWI-Blue was commissioned ...

How does it look when Earth is bombarded with dark matter?

University of Southern Denmark researchers have conducted simulations of dark matter particles hitting the Earth. Physicists believe that Earth collides with uncountable dark matter particles as it hurtles through space. ...

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