Sep 25, 2025 · A nebula is a giant cloud of dust and gas in space. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova.

Sep 25, 2025 · Usually a very dense core is left behind, along with an expanding cloud of hot gas called a nebula. A supernova of a star more than about 10 times the size of our sun may leave behind the …

Sep 25, 2025 · What Is a Nebula? What Is a Solar Eclipse? Learn more about what happens when the moon passes between Earth and the sun! explore Searching for Other Planets Like Ours Exoplanets …

Nebula Name That Nebula play What Is a Nebula? How Did the Solar System Form? The story starts about 4.6 billion years ago, with a cloud of stellar dust. explore Gallery of NASA Universe Images …

Aug 29, 2022 · This cloud was part of a bigger cloud called a nebula. At some point, the cloud collapsed—possibly because the shockwave of a nearby exploding star caused it to compress.

Sep 25, 2025 · explore What Is a Supernova? explore What Are Constellations? explore How Does Our Sun Compare With... explore What Is a Nebula? Glossary for "Sign Here!" words All About the Sun …

Oct 11, 2024 · Test your nebulae knowledge and match these tumultuous clouds of gas and dust with their true names. These nebula views were taken by the Hubble Space Telescope, which is a …

A nebula is a cloud of dust and gas in space.

Sep 25, 2025 · What Is a Nebula? What Is a Light-Year? A light-year is the distance light travels in one Earth year. Learn about how we use light-years to measure the distance of objects in space. explore …

That glowing gas cloud is called a planetary nebula, and what is left behind at the center is called a white dwarf. The white dwarf may have half the mass of the Sun contained in an object with the …