It’s a big, big universe
But there are bigger stars yet. When compared to Antares, our handsome sun is a mere pixel on a map. And Antares is not even the biggest star. That title is thought to belong to a star called VY Canus Majoris. It is about 2,000 times the size of the sun, or more than twice the size of Antares.
Sun in comparison to Antares:
Note that it VY Canus Majoris is the biggest in size but not mass. The currently known most massive star is thought to be WR 102ka – known as Peony Nebula Star – at about 175 times the mass of the sun.
How big is the universe?
The Wilkinson Microwave Anisotropy Probe calculated the age of the known universe at 13.7 billion years old, based on its radius of 13.7 billion light years. And it is growing bigger every day, at a speed of 71 km/s/Mpc. The size of the whole universe is estimated to be 78 billion light years. If you start traveling today at 60 miles per hour (100km/h) you’ll get to the end of your first coffee stop, the end of one light year, in nine trillion years. Then you just keep going for another 77 billion light years. Or you could stay here, look after our beautiful planet… and enjoy the sun.
Sharks are the only animals that never get sick: they