Can we reach the end of our galaxy?

Can we reach the end of our galaxy?

So, to leave our Galaxy, we would have to travel about 500 light-years vertically, or about 25,000 light-years away from the galactic centre. We’d need to go much further to escape the ‘halo’ of diffuse gas, old stars and globular clusters that surrounds the Milky Way’s stellar disk.

How long would it take to get to the farthest galaxy?

At the rate of 17.3 km/sec (the rate Voyager is traveling away from the Sun), it would take around 225,000,000,000,000 years to reach this distance. At the speed of light, it would take 13 billion years!

How long would it take to walk to the edge of the galaxy?

At a modest walking speed of 3 kilometers per hour, with no sleeping or days off, 18 trillion years or so.

Will the Big Rip happen?

Observed universe One final thing. The Big Rip won’t happen! According to the latest cosmological data available, the uncertainties are still too large to discriminate among the three cases w < −1, w = −1, and w > −1.

Will the universe go dark?

The known laws of physics suggest that by about 10100 (the No. 1 followed by 100 zeros) years from now, star birth will cease, galaxies will go dark, and even black holes will evaporate through a process known as Hawking radiation, leaving little more than simple subatomic particles and energy.

Is the space infinite?

There’s a limit to how much of the universe we can see. The observable universe is finite in that it hasn’t existed forever. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding).

Is there end to 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.

How many years is 500 light-years?

It would take 500 years to travel 500 light-year distance at the speed of light.

Will humans travel to other galaxies?

Unfortunately, we’re unlikely to ever make contact with life in other galaxies. Travel by spaceship to our closest intergalactic neighbor, the Canis Major Dwarf, would take almost 750,000,000 years with current technology. Even a radio signal, which moves at close to the speed of light, would take 25,000 years.

How many light years is our galaxy?

Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across.

Where does space end?

Scientists now consider it unlikely the universe has an end – a region where the galaxies stop or where there would be a barrier of some kind marking the end of space. But nobody knows for sure.

What is left after the Big Rip?

If the Big Rip is true, it should simply tear all the matter apart, leading to a very empty Universe with a large amount of energy inherent to space itself.

Will universe ever shrink?

In just 100 million years, the universe could start to shrink, new research suggests. After nearly 13.8 billion years of nonstop expansion, the universe could soon grind to a standstill, then slowly start to contract, new research published in the journal Proceedings of the National Academy of Sciences suggests.

Will the universe ever start shrinking?

Soon, perhaps within about 65 million years, that acceleration could stop altogether – then, within as few as 100 million years from now, dark energy could become attractive, causing the entire universe to start contracting. In other words, after nearly 14 billion years of growth, space could start to shrink.

How long would it take to get to the next galaxy from Earth?

To get to the closest galaxy to ours, the Canis Major Dwarf, at Voyager’s speed, it would take approximately 749,000,000 years to travel the distance of 25,000 light years! If we could travel at the speed of light, it would still take 25,000 years!

How long would it take Voyager 1 to reach Andromeda?

… and even if we ignored that – it would need 3.3 billion years for the journey at the current distance.

How long would it take to travel to the furthest star?

Proxima Centauri is 4.2 light-years from Earth, a distance that would take about 6,300 years to travel using current technology. Such a trip would take many generations.

How far away is the farthest galaxy ever discovered?

Named HD1, the galaxy candidate is some 13.5 billion light-years away and is described today in The Astrophysical Journal . In an accompanying paper published in the Monthly Notices of the Royal Astronomical Society Letters , scientists have begun to speculate exactly what the galaxy is.