- What’s the oldest star in the universe?
- How old is the youngest star?
- What is the oldest man made thing on earth?
- Could we be in a black hole?
- How old can the universe get?
- What is the oldest thing in the world?
- How old is our galaxy?
- What is outside the universe?
- What is the color of the youngest star?
- Which is the oldest city in the world?
- Can the universe be older than we think?
- What was the first thing to ever exist?
- Why can we see 46 billion light years?
- Does the universe have an end?
- What is at the end of space?
- Can the universe be older than 14 billion years?
- What was before the universe?
What’s the oldest star in the universe?
Methuselah starThis Digitized Sky Survey image shows the oldest star with a well-determined age in our galaxy.
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..
How old is the youngest star?
7 billion yearsOur findings were not consistent with a purely old Milky Way bulge, but require star formation lasting around 4 billion years and starting around 11 billion years ago. The youngest stars that we see are at least 7 billion years old, which is older than some previous studies had suggested.”
What is the oldest man made thing on earth?
Lomekwi is near the west bank of Lake Turkana, which is pictured in green on this satellite image. Stony Brook University, US. Lomekwi 3 is the name of an archaeological site in Kenya where ancient stone tools have been discovered dating to 3.3 million years ago, which make them the oldest ever found.
Could we be in a black hole?
A black hole is an object so dense that not even light can escape it. … Some researchers believe the universe emerged from the collapse of a star in a very different reality with five dimensions, meaning our reality was created by a black hole which we could still be living inside.
How old can the universe get?
around 13.8 billion yearsIn physical cosmology, the age of the universe is the time elapsed since the Big Bang. The current measurement of the age of the universe is around 13.8 billion years (as of 2015) – 13.787±0.020 billion years within the Lambda-CDM concordance model (as of 2018).
What is the oldest thing in the world?
The zircon crystals from Australia’s Jack Hills are believed to be the oldest thing ever discovered on Earth. Researchers have dated the crystals to about 4.375 billion years ago, just 165 million years after the Earth formed. The zircons provide insight into what the early conditions on Earth were like.
How old is our galaxy?
13.51 billion yearsMilky Way/Age
What is outside the universe?
Encountering the Unknown Despite its strangeness, this first idea is one of the easiest to digest. Astronomers think space outside of the observable universe might be an infinite expanse of what we see in the cosmos around us, distributed pretty much the same as it is in the observable universe.
What is the color of the youngest star?
blue colourYoung stars (of blue colour) emit more light than older (redder) stars. However, since there was just about as much light in the young Universe as there is today – although the galaxies are now much redder – this implies that there were fewer stars in the early Universe than today.
Which is the oldest city in the world?
Jericho, West Bank Jericho, a city in the Palestine territories, is a strong contender for the oldest continuous settlement in the world: it dates back to around 9,000 B.C., according to Ancient History Encyclopedia.
Can the universe be older than we think?
A larger Hubble Constant makes for a faster moving — and younger — universe. The generally accepted age of the universe is 13.7 billion years, based on a Hubble Constant of 70. Jee’s team came up with a Hubble Constant of 82.4, which would put the age of the universe at around 11.4 billion years.
What was the first thing to ever exist?
Stromatolites, like those found in the World Heritage Area of Shark Bay, Western Australia, may contain cyanobacteria, which were most likely Earth’s first photosynthetic organisms. The earliest evidence for life on Earth arises among the oldest rocks still preserved on the planet.
Why can we see 46 billion light years?
The universe is about 13.8 billion years old, so any light we see has to have been travelling for 13.8 billion years or less – we call this the ‘observable universe’. However, the distance to the edge of the observable universe is about 46 billion light years because the universe is expanding all of the time.
Does the universe have an end?
The end result is unknown; a simple estimation would have all the matter and space-time in the universe collapse into a dimensionless singularity back into how the universe started with the Big Bang, but at these scales unknown quantum effects need to be considered (see Quantum gravity).
What is at the end of space?
No, they don’t believe there’s an end to space. However, we can only see a certain volume of all that’s out there. Since the universe is 13.8 billion years old, light from a galaxy more than 13.8 billion light-years away hasn’t had time to reach us yet, so we have no way of knowing such a galaxy exists.
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 was before the universe?
The initial singularity is a gravitational singularity predicted by general relativity to have existed before the Big Bang and thought to have contained all the energy and spacetime of the Universe.