Tag: star nebula

NASA Astronomy Picture of the Day 29 March 2023: Stunning Dolphin-Head Nebula
Technology

NASA Astronomy Picture of the Day 29 March 2023: Stunning Dolphin-Head Nebula

[ad_1] Nebulae are places where stars are birthed. The makeup of a Nebula consists of gases, mainly hydrogen and helium. Although most nebulae belong to just three types - spherical, elliptical and bipolar, some of them might be irregularly shaped, so much so that they resemble objects on Earth. Some of the most peculiar shapes include the Headphone nebula, the Heart and Soul nebula and the Flying Ghost nebula. One of the most easily recognizable nebulae is the Dolphin-Head nebula, which just looks like a dolphin's head floating in space.Today's NASA Astronomy Picture of the Day is the Dolphin-Head nebula, located about 5000 light-years away from Earth towards the constellation of Canis Major, also known as the Big Dog. This weirdly fascinating nebula is about 70000 years old and spans ...
Childhood of stars shapes stellar evolution
Technology

Childhood of stars shapes stellar evolution

[ad_1] Scientists now show that the biography of stars is indeed shaped by their early stage. In classical models of stellar evolution, so far little importance has been attached to the early evolution of stars. Scientists now show that the biography of stars is indeed shaped by their early stage. From babies to teenagers: stars in their "young years" are a major challenge for science. The process of star formation is particularly complex and difficult to map in theoretical models. One of the few ways to learn more about the formation, structure or age of stars is to observe their oscillations. "Comparable to the exploration of the Earth's interior with the help of seismology, we can also make statements about their intern...