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A generic term for a fuzzy, diffuse astronomical object. Astronomers have observed four different types of nebulae: H II regions, reflection nebulae, planetary nebulae, and supernova remnants.

Featured Images

rcw 120, a busy stellar nursery

Stellar Bubble September 5, 2021

A stellar nursery known as the Pillars of Creation

Pillars of Creation August 8, 2021

Multi-spectral view of Cassiopeia A, a supernova remnant

Brilliant Demise October 26, 2020

ngc 2014, ngc 2020

Stellar Reef April 25, 2020

Vela Supernova Remnant

Big Bubble April 11, 2020

Rotten Egg Nebula

Death Throes February 16, 2020

Rosette Nebula

A Big Rose January 26, 2020

Perseus Molecular Cloud in Infrared

Stellar Nursery December 27, 2019

Infrared view of Lambda Centauri Nebula

A WISE spacecraft December 14, 2019

Segment of Veil Nebula

Unveiling a Supernova August 30, 2019

Infrared view of a stellar nursery in Cepheus

Busy Nursery June 3, 2019

composite image of a "cannonball" pulsar

Fire! April 5, 2019

W40 stellar nursery

Delicate Butterfly March 28, 2019

ngc 2264

Rolling Starbirth February 12, 2019

A stellar nursery in the Large Magellanic Cloud

Blowing Bubbles February 6, 2019

A combination of star-forming regions and the remains of an exploded star, seen in the infrared

Birth and Death August 3, 2018

Tycho's Supernova

Death Mask July 17, 2018

M97, the Owl Nebula, in Ursa Major

It's a Hoot March 17, 2018

Lupus 3 star forming region

Light and Dark February 8, 2018

Orion's Belt

Shiny Belt January 6, 2018

VLT image of three galactic nebulae: M17, M16, and Sharpless 2-54

Galactic Nurseries June 29, 2017

NGC 6334 and NGC 6357

Galactic Menagerie February 2, 2017

Infrared view of Orion Nebula and surrounding clouds of gas and dust

Making Stars January 5, 2017

Hubble Space Telescope view of NGC 248 in the Small Magellanic Cloud

Bright Gas December 22, 2016

Ultraviolet views of Z Camelopardalis, an erupting binary system

Popping Off October 22, 2016

Cloudy California October 3, 2016

Infrared view of the Orion Nebula

Brilliant Nursery July 12, 2016

Hubble view of Bubble Nebula

Bubbly Star April 21, 2016

Hubble view of the Crab Nebula

Spectacular Crab December 14, 2015

Planetary nebula known as the Eskimo Nebula

Cyclops? November 29, 2015

Hubble view of the Eta Carinae system

The Homunculus October 21, 2015

Hubble Space Telescope image of the Lagoon Nebula

Colorful Lagoon July 31, 2015

Hubble Space Telescope image of a young star cluster

Anniversary Portrait April 23, 2015

Radio Programs

Making More Stars Quick births in a stellar nursery September 5, 2021

Eagle Nebula The “eggs” of a celestial eagle August 8, 2021

More Cassiopeia A Forging big batches of chemical elements October 27, 2020

Dumbbell Nebula A brilliant final act September 20, 2020

Caroline’s Rose A beautiful stellar “rose” September 9, 2020

Cygnus Superbubble Blowing a giant “bubble” in space August 30, 2020

Sadr Playing tricks in the night sky August 13, 2020

Red Square A star’s beautiful demise July 7, 2020

Vela Supernova Inflating a giant bubble April 11, 2020

NGC 246 Sculpting a bright skull February 26, 2020

Unicorn Clouds Young stars for the unicorn January 26, 2020

Monoceros Outlining the celestial unicorn January 25, 2020

Witch Head Nebula Illuminating the face of a witch January 20, 2020

Veil Nebula Unveiling a cosmic explosion August 30, 2019

Stellar Nurseries A busy stellar nursery August 29, 2019

Cloudy Skies Flickering clouds near young stars March 29, 2019

Barnard 68 The birthplace of future stars June 7, 2018

Pipe Nebula Puffing through the Milky Way June 6, 2018

Crab Nebula Sculpting an interstellar crab April 19, 2018

NGC 2467 Three clusters for the price of one April 10, 2018

Vela Nursery Sailing into a young stellar nursery April 2, 2017

More Pleiades Reflections on a bright cloud November 18, 2016

Z Camelopardalis From a flashlight to a searchlight October 28, 2016

California Nebula Lighting up a dark cloud October 8, 2016

Tarantula Nebula Making stars by the basketful July 5, 2016

Horsehead Nebula Destroying a dark horsehead February 13, 2016

IC 1396 A busy stellar nursery January 28, 2016