The Andromeda Galaxy is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth, and the nearest major galaxy to the Milky Way. The galaxy's name stems from the area of the Earth's sky, The Andromeda constellation.





The Andromeda Galaxy has a diameter of about 220,000 light-years, making it the largest member of the Local Group at least in terms of extension, if not mass.

The number of stars contained in the Andromeda Galaxy is estimated at one trillion (1×1012), or roughly twice the number estimated for the Milky Way.









Now lets talk about the fastest spacecraft in today's technology. The Solar Park Probe, is a NASA robotic spacecraft launched in 2018, with the mission of repeatedly probing and making observations of the outer corona of the Sun. It will approach to within 9.86 Solar radii (6.9 million kilometres or 4.3 million miles)from the centre of the Sun and by 2025 will travel, at closest approach, as fast as 430,000 mph (0.0064%) the speed of light.





So lets do the maths (well try anyway.) The andromeda galaxy is 2.5 million light years away, so therefore it would take 2.5 million years travelling at the speed of light, 670,616,629 mph (which is theoretically impossible). If humans tried this expenditure travelling at 430,000 mph it would take approx 360 Trillion years (360,000,000,000,000 years.) In conclusion, something tells me we won't be reaching there anytime soon.