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How do observations of distant supernovae show that the expansion of the Universe is accelerating?
Observation of distant galaxies showed that the universe is accelerating by this method.
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Recent results from very bright supernovae in very distant galaxies seem to indicate what about the expansion of the universe?
Astronomers used this and found out that the universe is accelerating due to dark energy.
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Edwin Hubble discovered the universe was expanding by measuring the light of distant stars, and by showing that those distant stars were moving further away from the earth. If this is so, then why is the Andromeda Galaxy moving closer to us?
Andromeda is being pulled apart by the expanding universe. But the gravity between the Milky Way and Andromeda is strong enough to overcome this expansive force. Gravity is pretty...
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What types of stars end their lives with supernovae?
This cutoff is slightly dependent on the metallicity of the star i.e. the fraction of atoms that aren't Hydrogen and Helium (to Astronomers, 'meatals' are elements heavier than Helium). Still,...
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What important roles does the supernovae play in the universe?
After the stars were formed they cooked up the elements up to Iron in the periodic table..Elements higher than Iron in the table was made in the supernova explosions..
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Do scientists know how many supernovae are occurring per second or hour or day in our entire universe?
Our ability to detect a super nova is determined by the sensitivity and ability of the equipment used. The Hubble was a giant leap for us in that respect and...
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How do supernovae recycle matter?
The majority of matter in the universe is hydrogen and secondly helium. Most stars convert hydrogen into helium by nuclear fusion. More massive stars use the Carbon-Nitrogen-Oxygen fusion process to...
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Why were the observations made by the COBE satellite so important to cosmology?
Before COBE attempts to trace the spectrum of Cosmic Microwave Background Radiation (CMBR) using balloon bourne experiments could not get the full spectrum. So it was not clear if it...
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In what ways did the astronomical observations of Galileo support a heliocentric cosmology?
Crescent phase of mercury and Venus happen only in Sun centered Universe Things go round other objects also.This proved that earth can not be center,.
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Why is Cosmic Microwave Background important to cosmology?
It is the remnant of the explosion that created universe It is the proof for big bang model of cosmology..
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