Named for its stallion-like silhouette, the iconic Horsehead Nebula lies roughly 1,300 light ... by other space telescopes—first by Hubble in 2013, then by the European Space Agency’s Euclid ...

Hubble Telescope image of the Horsehead Nebula. Credit: T.A.Rector (NOIRLab/NSF/AURA) & Hubble Heritage Team (STScI/AURA/NASA) Nebulae are all but impossible to spot in the night sky, but you'd ...

Helix Nebula: This a planetary nebula, which is formed when a star like the Sun runs out of fuel, expands and its outer layers puff off, and then the core of the star shrinks. Orion Nebula ...