A Star Is Born: How Stellar Newborn Illuminates a Hidden NebulaA luminous newborn star has been captured by the EuropeanSouthern Observatory. On Wednesday, the...Fedde, Corey
A nebula ais one of the most beautiful deep-sky objects in the night sky. But what is a nebula? And how do these space clouds form?
One of the most famous star-forming regions visible to our eyes (and telescopes) is the Orion Nebula. A stellar nursery, it's a hotbed for newborn stars and provides a glimpse into the various stages of star birth. Whether you're looking at a Hubble image or gazing through a telescope,...
Hubble's Law is a major piece of evidence that the universe is expanding — his work formed the basis of the big bang theory of the origin of the universe. The Doppler Effect Much like the high-pitched sound from a fire-truck siren gets lower as the truck moves away, the movement of...
The different stages of stellar evolution span from the formation to the death of a star. A star is formed from a nebula and dies as a white dwarf or...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Ou...
Stellar evolution is a very specific subject. It deals exclusively with the life cycle of stars. Astrophysics is a much more general and broader...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
At the centre of the Southern Ring Nebula is a hot, dense white dwarf star. As it transformed into a white dwarf, the star periodically ejected mass – the shells of material you see here. ©NASA/ESA/CSA/STScI Much of the heat that was generated in the core throughout the Sun’s...
If the cosmos is infinite, it is infinite. On the Big Bang, it was constantly dense. Space has gotten less dense since that time. The hyper-sphere would not have adequate curvature in the infinite situation.Answer and Explanation: Naturally, the observable Universe is considerably larger. ...
years across but is a particularly busy stellar nursery. This region is full of young stars, and these stars seem to be forming in a flowing spiral structure of gas and stars which the researchers compare to a river. This could help explain why the rate of star formation here is so high...
By placing the stars in a globular cluster on a Hertzprung-Russell diagram, astronomers can determine the cluster’s age by looking at the main sequence turnoff point and comparing it with models of stellar evolution. Astronomy: Roen Kelly Q: The globular cluster NGC 6397 is 7,800 light-...