The origin of the globular clusters observed in most galaxies remains a mystery, but the vast star swarms provide some of the most stunning sights in the heavens for professional and amateur astronomers alike.
As engineers work to resolve a computer glitch aboard the Hubble Space Telescope, its images, like this one of NGC 330, are a reminder of the spectacular views the observatory has provided for the past three decades.
A supermassive black hole at the heart of galaxy NGC 1097 powers a brilliant nuclear ring of run-away star formation as imaged by the European Southern Observatory’s Very Large Telescope.
NASA managers are optimistic about fixing a computer glitch and restoring the Hubble Space Telescope to operation, but say it could take several weeks.
The magnificent Omega Centauri globular cluster is a riveting sight in even small telescopes, but it takes the Hubble Space Telescope to provide the jaw-dropping vista seen here.
The Atlas of Peculiar Galaxies features more than 300 galaxies exhibiting an unusual appearance, including NGC 2276, seen here in a spectacular photo from the Hubble Space Telescope.e
The globular cluster M13 in Hercules, a splendid sight in even modest telescopes, serves up a vast metropolis of stars when imaged by the Hubble Space Telescope.
To mark the Hubble Space Telescope’s 31st anniversary in space, astronomers captured a dramatic image of a rare luminous blue variable, one of the most massive and brightest stars in the Milky Way.