How old is the end of the universe?
The universe is (nearly) 14 billion years old, astronomers confirm. With looming discrepancies about the true age of the universe, scientists have taken a fresh look at the observable (expanding) universe and have estimated that it is 13.77 billion years old (plus or minus 40 million years).
Can the universe be older than we think?
Since around 1997–2003, the problem is believed to have been solved by most cosmologists: modern cosmological measurements lead to a precise estimate of the age of the universe (i.e. time since the Big Bang) of 13.8 billion years, and recent age estimates for the oldest objects are either younger than this, or …
Is there anything older than our universe?
HD 140283 (or the Methuselah star) is a metal-poor subgiant star about 200 light years away from the Earth in the constellation Libra, near the boundary with Ophiuchus in the Milky Way Galaxy. Its apparent magnitude is 7
What if a nearby star went supernova?
Any planet with life on it near a star that goes supernova would indeed experience problems. X- and gamma-ray radiation from the supernova could damage the ozone layer, which protects us from harmful ultraviolet light in the sun’s rays. The less ozone there is, the more UV light reaches the surface.
What is the next star to explode?
Betelgeuse is going to explode … Betelgeuse’s enormous energy requires that its fuel be expended quickly, which hastens the end of its life. Someday “soon” the star will run out of fuel, collapse under its own weight, and then rebound in a spectacular supernova explosion.
When man dies what happens?
Breathing and heart rates may slow. In fact, there may be times when the person’s breathing becomes abnormal, known as Cheyne-Stokes breathing. Some people hear a death rattle, noisy breathing that makes a gurgling or rattling sound. The chest stops moving, no air comes out of the nose, and there is no pulse.