2025年3月17日 · Nebulae are made of dust and gases—mostly hydrogen and helium. The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger.

2024年10月11日 · 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 telescope about the size of a school bus that orbits around Earth!

2024年8月5日 · Galaxies, nebulae, and supernova remnants to view or print. explore; Glossary. Find definitions of space and Earth science terms . explore; How Scary Is Space? Check out these nine unearthly nightmares that could be happening right now in our own galaxy. Eek! explore; Printed Product Downloads

Galaxies, nebulae, and supernova remnants to view or print. explore; What Is a Supernova? Learn more about these exploding stars! explore; How Do Telescopes Work? Telescopes use mirrors and lenses to help us see faraway objects. And mirrors tend to work better than lenses! Learn all about it here.

2025年3月17日 · A nebula is a cloud of dust and gas in space. Una nebulosa es una nube gigante de polvo y gas en el espacio. Algunas nebulosas provienen del gas y el polvo expulsado por la explosión de una estrella moribunda, como una supernova.Otras nebulosas son regiones donde comienzan a formarse nuevas estrellas.

2025年3月17日 · Galaxies, nebulae, and supernova remnants to view or print. explore; What Is Gravity? Gravity is the force by which a planet or other body draws objects toward its center. explore; NASA Pumpkin Stencils. Paint pumpkins with space and Earth science designs . do; Printable Space Valentines

2025年3月17日 · A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.

2025年3月17日 · Learn about NASA space and Earth science with our educational games for kids

2025年3月17日 · Galaxies, nebulae, and supernova remnants to view or print. explore; What Is the Big Bang? Why do we call it that? explore; What Is Dark Matter? and dark energy, too! explore; Glossary. Find definitions of space and Earth science terms . explore; What Is a Nebula? A nebula is a cloud of dust and gas in space.

2025年3月17日 · A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. An illustration of one of the brightest and most energetic supernova explosions ever recorded.