2025年1月26日 · Hubble’s observations of nebulae reveal bizarre landscapes sculpted by radiation from young, exceptionally bright stars. The observations reveal the violent process of star birth that produces intense ultraviolet radiation and shock fronts.

1999年12月6日 · A star is born when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion.

Star formation is the process by which dense regions within molecular clouds in interstellar space—sometimes referred to as "stellar nurseries" or "star-forming regions"—collapse and form stars. [1]

2023年2月2日 · What is the complete life cycle of a star from birth to death. How do they evolve. Learn the different stages step by step in detail with simple images.

2024年10月22日 · 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. Stars form in large clouds of gas and dust called molecular clouds.

2009年11月10日 · The image reveals in unprecedented detail the current rapid rate of star birth in this famous “grand design” spiral galaxy. The newest generations of stars are forming largely in clusters on the edges of the dark dust lanes, the backbone of the spiral arms.

2022年7月12日 · Captured in infrared light by NASA’s new James Webb Space Telescope, this image reveals for the first time previously invisible areas of star birth. Called the Cosmic Cliffs, Webb’s seemingly three-dimensional picture looks like craggy mountains on a moonlit evening.

The telescope surprisingly uncovered the first evidence that planet formation accompanies star birth. The fireworks that accompany star death, from exotic-looking planetary nebula to titanic stellar explosions, unveiled new mysteries to Hubble.

Star birth starts in dense molecular clouds, where gravity pulls everything together. We’ve seen how this journey from a cloud to a shining star has many stages. These include gravitational collapse, protostar formation, and the birth of T Tauri stars.

2024年12月20日 · Learn about star formation and how NASA’s James Webb Space Telescope (JWST) answers questions about the life cycle of stars.