A retired four-star Army general had high praise for President Biden’s decision to send cluster munitions to Ukraine last week. “I think President Biden, Lloyd Austin, and Blinken were ...

Uranus will also be on show, if you fancy a more challenging target. Early risers are in for a celestial treat on July 5, ...

More information: Guimei Liu et al, Formation and evolution of new primordial open cluster groups: Feedback-driven star formation, Astronomy & Astrophysics (2025). DOI: 10.1051/0004-6361/202452774 ...

Astronomers have studied the globular cluster 47 Tucanae extensively, but still have many questions. It may have an ...

Some of these open clusters are pretty famous, such as the Pleiades cluster, also known as the Seven Sisters. This is ...

Each of these stars in the clusters are around 3 million years old, “babies in star time,” EarthSky wrote. By comparison, Earth’s sun is 4.5 billion years old, according to NASA .

Star cluster NGC 1466. NASA’s Hubble Space Telescope shows NGC 1466 as an ancient globular cluster consisting of a glimmering ball of stars held together by gravity.

The Star Cluster stamp is also issued in a pane of four, costing $31.40, the price of the Priority Mail Express Flat-Rate Envelope.

Hubble Space Telescope finds elusive black hole in star cluster A report from Nature shows that astronomers may have found a medium-sized black hole, a kind they've long looked for.

This amazing star cluster is some 444 light years from Earth and is a young stellar group made up of young hot blue stars. In mythology, the Pleiades are the daughters of the great Atlas and Pleione.

The star cluster is the nearest open cluster of stars to the sun. At only 600-700 million years old, the beehive cluster is a spring chicken in astrological terms, ...