- Stars - NASA Science
Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements Every star has its own life cycle, ranging from a few million to trillions of years, and its properties change as it ages
- Types - NASA Science
Types of Stars The universe’s stars range in brightness, size, color, and behavior Some types change into others very quickly, while others stay relatively unchanged over trillions of years Main Sequence Stars NASA’s Solar Dynamics Observatory captured this image of our 4 6-billion-year-old Sun, a main sequence star
- Universe - NASA Science
The NuSTAR (Nuclear Spectroscopic Telescope Array) mission studies the universe in high energy X-rays to better understand the dynamics of black holes, exploding stars, and the most extreme active galaxies
- The Lives, Times, and Deaths of Stars - Science@NASA
A star is born These tendrils of cosmic dust and gas sit at the heart of M16, or the Eagle Nebula The aptly named Pillars of Creation, featured in these stunning Hubble images, are part of an active star-forming region within the nebula and hide newborn stars in their wispy columns
- Stars in an Exoplanet World - Science@NASA
Stars are the most basic building blocks of galaxies The age, distribution, and composition of stars trace the history, dynamics, and evolution of their galaxy
- Hubble Snapshot Captures Life Cycle of Stars - Science@NASA
This picture nicely illustrates the entire stellar life cycle of stars, starting with the Bok globules and giant gaseous pillars (evidence of embryonic stars), followed by circumstellar disks around young stars, and progressing to aging, massive stars in a young starburst cluster
- Exploring the Birth of Stars - Science@NASA
Stars form in large clouds of gas and dust called nebulae that scatter the visible wavelengths of light our eyes can see Hubble’s capability to see ultraviolet, visible, and near-infrared light enables study of several aspects of star formation
- Star Lifecycle - Science@NASA
Groups of stars make up galaxies, while planets and ultimately life arise around stars Although stars have been the main topic of astronomy for thousands of years, we have begun to understand them in detail only in recent times through the advent of powerful telescopes and computers
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