- What is the oldest galaxy?
- Who created the universe?
- How big is everything in the universe?
- Does the universe end?
- What is older than the universe?
- How old is our galaxy?
- How long will the universe last?
- Is our universe flat?
- Will we ever visit other galaxies?
- How old is a black hole?
- How old is the youngest star?
- How old is a God?
- How far away can we see in space?
- How do we know the age of the universe?
- How cold is space?
- What is outside the universe?
- How old is our sun?
- Does time have an end?
- How do they know the universe is 13.7 billion years old?
- Can the universe be older than 14 billion years?
- What is the biggest thing in the universe?
What is the oldest galaxy?
GN-z11GN-z11 is currently the oldest and most distant known galaxy in the observable universe.
GN-z11 has a spectroscopic redshift of z = 11.09, which corresponds to a proper distance of approximately 32 billion light-years (9.8 billion parsecs)..
Who created the universe?
In his 1988 book, A Brief History of Time, Hawking had seemed to accept the role of God in the creation of the universe. But in the new text, co-written with American physicist Leonard Mlodinow, he said new theories showed a creator is “not necessary”.
How big is everything in the universe?
Today we are fairly confident that the Milky Way is probably between 100,000 and 150,000 light years across. The observable Universe is, of course, much larger. According to current thinking it is about 93 billion light years in diameter.
Does the universe end?
As the energy density, scale factor and expansion rate become infinite the universe ends as what is effectively a singularity.
What is older than the universe?
Called the Methuselah star, HD 140283 is 190.1 light-years away. Astronomers refined the star’s age to about 14.3 billion years (which is older than the universe), plus or minus 800 million years. Image released March 7, 2013.
How old is our galaxy?
13.51 billion yearsMilky Way/Age
How long will the universe last?
Assuming that dark energy continues to make the universe expand at an accelerating rate, in about 150 billion years all galaxies outside the Local Supercluster will pass behind the cosmological horizon.
Is our universe flat?
The exact shape is still a matter of debate in physical cosmology, but experimental data from various independent sources (WMAP, BOOMERanG, and Planck for example) confirm that the universe is flat with only a 0.4% margin of error.
Will we ever visit other galaxies?
According to our current understanding of physics, an object within space-time cannot exceed the speed of light, which means an attempt to travel to any other galaxy would be a journey of millions of earth years via conventional flight.
How old is a black hole?
8. What is the most distant black hole ever seen? The most distant black hole ever detected is located in a galaxy about 13.1 billion light-years from Earth. (The age of the universe is currently estimated to be about 13.8 billion years, so this means this black hole existed about 690 million years after the Big Bang.)
How old is the youngest star?
It’s the youngest neutron star ever discovered: 33 years old. The Cassiopeia A supernova remnant was not visible to the naked eye, but astronomers have determined … [+]
How old is a God?
I’d even say there was no God before the end of the Neolithic age, and that means God is roughly 7,000 years old.
How far away can we see in space?
30 billion light-years awayToday, the most distant objects we can see are more than 30 billion light-years away, despite the fact that only 13.8 billion years have passed since the Big Bang. The farther a galaxy is, the faster it expands away from us and the more its light appears…
How do we know the age of the universe?
Astronomers estimate the age of the universe in two ways: 1) by looking for the oldest stars; and 2) by measuring the rate of expansion of the universe and extrapolating back to the Big Bang; just as crime detectives can trace the origin of a bullet from the holes in a wall.
How cold is space?
Hot things move quickly, cold things very slowly. If atoms come to a complete stop, they are at absolute zero. Space is just above that, at an average temperature of 2.7 Kelvin (about minus 455 degrees Fahrenheit).
What is outside the universe?
In our own backyard, the Universe is full of stars. But go more than about 100,000 light years away, and you’ve left the Milky Way behind. Beyond that, there’s a sea of galaxies: perhaps two trillion in total contained in our observable Universe.
How old is our sun?
4,500,000,000 years oldOur sun is 4,500,000,000 years old. That’s a lot of zeroes. That’s four and a half billion.
Does time have an end?
“Time is unlikely to end in our lifetime, but there is a 50% chance that time will end within the next 3.7 billion years,” they say. That’s not so long! It means that the end of the time is likely to happen within the lifetime of the Earth and the Sun. … At least, not for another 3.7 billion years.
How do they know the universe is 13.7 billion years old?
The scientists studied an image of the oldest light in the universe to confirm its age of 13.8 billion years. This light, the “afterglow” of the Big Bang, is known as the cosmic microwave background and marks a time 380,000 years after the universe’s birth when protons and electrons joined to form the first atoms.
Can the universe be older than 14 billion years?
The uncertainty on the age figure is less than 100 million years, so even though it might be plausible that the Universe is slightly older-or-younger, it’s extraordinarily improbable to get up to 14.5 billion years.
What is the biggest thing in the universe?
The biggest supercluster known in the universe is the Hercules-Corona Borealis Great Wall. It was first reported in 2013 and has been studied several times. It’s so big that light takes about 10 billion years to move across the structure. For perspective, the universe is only 13.8 billion years old.