Gaia maps largest ever collection of quasars in space and time

Gaia maps largest ever collection of quasars in space and time

Astronomers have created the largest yet cosmic 3D map of quasars: bright and active centres of galaxies powered by supermassive black holes. This map shows the location of about 1.3 million quasars in space and time, with the furthest shining bright when the Universe...
A conjunction of Venus and Saturn

A conjunction of Venus and Saturn

On March 21, spotting Saturn before sunrise will be a challenge — but you can use bright Venus nearby as a guide. Credit: Astronomy: Roen Kelly Friday, March 15The waxing Moon sits in Taurus the Bull this evening, slowly sinking in the west after sunset. Luna hangs...
The Maximum Mass of a Neutron Star is 2.25 Solar Masses

The Maximum Mass of a Neutron Star is 2.25 Solar Masses

When stars grow old and die, their mass determines their ultimate fate. Many supermassive stars have futures as neutron stars. But, the question is, how massive can their neutron stars get? That’s one that Professor Fan Yizhong and his team at Purple Mountain...
Earth from Space: Vienna, Austria

Earth from Space: Vienna, Austria

The historic centre of Vienna, Austria’s capital city, is featured in this image captured on 23 June 2023.Zoom in to explore this image at its full resolution or click on the circles to learn more.Vienna lies in the northeastern corner of Austria and straddles the...