On 18 September, NASA and ESA/Hubble published a new image of NGC 4698, about 55 million light-years away. Its spiral arms circle the centre like a ring, while the central bulge extends at right angles to the disc. [1][2]

Stars and gas nearest the centre also rotate in a plane perpendicular to the rest of the galaxy. Gas arriving from outside is one possible explanation; some evidence suggests a past minor merger, without establishing it as certain. [2]

The observations belong to a programme studying galaxies in the Virgo Cluster. They will help investigate how the cluster environment affects their evolution and star formation. The new release is the image, not the discovery of the galaxy. [1][2]