Supernova - Wikipedia
A supernova (pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf …
What Is a Supernova? | NASA Space Place – NASA Science for Kids
2024年11月8日 · A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star.
Supernova | Definition, Types, & Facts | Britannica
2024年11月14日 · supernova, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level. The term supernova is …
What is a supernova? | Space
2023年6月19日 · Supernovas can briefly outshine entire galaxies and radiate more energy than our sun will in its entire lifetime. They're also the primary source of heavy elements in the …
The different types of supernovae explained - Astronomy Magazine
2023年11月8日 · These celestial fireworks are known as supernovae, and they serve as the universe’s most striking reminders of the cycle of stellar life. But not all supernovae are …
Supernovas & Remnants - Harvard–Smithsonian Center for …
Supernovas are some of the brightest events in the universe, occasionally outshining entire galaxies at their peak. Many supernovas can be seen from billions of light-years away, and …
What is a supernova? - EarthSky
2020年11月12日 · A supernova is a star's colossal explosion at the end of its life, which can outshine its entire galaxy. Read about causes and types of supernovae here.
Type Ia supernovae: Inside the universe’s biggest blasts
2022年12月8日 · Supernovae are the most spectacular fireworks in the universe. Just one such explosion can briefly outshine the rest of the stars in a galaxy combined. Astronomers have …
What is a Supernova? Yes, It's Truly "Super" Cool. - The Old …
2024年1月23日 · What is a Supernova? This is the biggest explosion that will ever light up the modern universe. Every blast is the extremely bright, super-powerful explosion of a star. It’s so …
DOE Explains...Supernovae | Department of Energy
A supernova is the colossal explosion of a star. Scientists have identified several types of supernova. One type, called a “core-collapse” supernova, occurs in the last stage in the life of …