[ad_1]
NASA
Astronomers have set a new deadline for the possibility of a tragic collision between the Milky Way and another nearby galaxy.
Scientists now believe that our galaxy will collide with Andromeda in 4.5 billion years, about 600 million years earlier than expected.
In the solar system, gravity will likely attract the sun into a new orbit, dragging the Earth and other planets.
ESA
The researchers tracked the position of stars in nearby galaxies to calculate the date of the Andromeda collision with the galaxy of the Milky Way. They used data from the Gaya satellite of the European Space Agency, which predicts billions of stars to measure its position and speed.
Stellar movements in the Milky Way galaxy, Andromeda, and another nearby galaxy called Triangulum show that a collision will occur later than expected.
ESA
The two galaxies are expected to collide within 4.5 billion years, longer than the estimate of 3.9 billion years, calculated in previous studies. Much of the perturbation can occur in both galaxies, which can distort the position of millions of stars and planets.
"The result is necessary for us to understand how galaxies evolve and interact with each other," said Timo Prosti, researcher at the Gaia project.
Andromeda is an island of one trillion suns, and it takes more than 2.5 million years to reach our galaxy.
Currently, the galaxy is heading for the Milky Way at 250,000 miles at the time, enough to travel the world in just 6 minutes.
The results were published in the Journal of Astrophysics.
Source: the sun
[ad_2]
Source link