The JWST's image of the Big Wheel galaxy, a massive rotating disk 11.7 billion light-years away. Its spiral stretches 100,000 ...

Through 4-inch and larger telescopes ... star lies a bit more than 2″ east of the nebula. A big neighbor This week’s second large-telescope target is barred spiral galaxy NGC 3109 in the ...

Photo: Andromeda nebula ... than eight times the distance to the furthest stars in the Milky Way! This proved that the "nebula" were actually separate systems outside and independent of our galaxy.

The cluster, full of more than 2,500 newborn stars that blaze blue in the Hubble image, is in a galaxy with far fewer heavy chemical substances than the Milky Way. It's mostly made of hydrogen and ...