Bright red veins lace across the sky and feed into enormous crimson clouds that look like living hearts, in this breathtaking view of the Gamma Cygni nebula and surrounding region ...

Here’s how it works. Bright red veins lace the sky and feed into enormous crimson clouds that look like living hearts, in this breathtaking view of the Gamma Cygni nebula and its surrounding ...

Nebulosity surrounds Cygnus’ central star, Sadr (Gamma [γ] Cygni). The Butterfly is a bright, apparent magnitude 14.9 emission nebula that measures about 240′ across. IC 5146 is both a blue ...

The V404 Cygni system, just 8,000 light years from ... in the X-ray sky – up to fifty times brighter than the Crab Nebula, normally one of the brightest sources in the high-energy sky." ...