This is an 80-million-pixel picture of the star cluster RCW 38, located 5500 light-years away in the constellation Vela. RCW 38 is a young cluster containing about 2000 stars, and is bursting with ...

As it nears 35 consecutive years of space service, the NASA/ESA Hubble Space Telescope has taken another look at a famous ...

How do rogue planetary-mass objects – celestial bodies that fall between planets and stars in size – come into existence? An ...

Astronomers have long been puzzled by mysterious, planet-sized objects drifting freely through space, unattached to any star. These cosmic wanderers, called planetary-mass objects (PMOs), weigh less ...

The stars were likely ejected due to gravitational interactions within the dense cluster. Crowded newborn stars may disrupt each other’s orbits, resulting in some being flung out of the cluster.

"The Phoenix cluster has the largest reservoir of hot, cooling gas of any galaxy cluster." How do you cool down a phoenix? I don't mean the mythological birds of flame and rebirth, but rather a ...