The European Space Agency's (ESA) Science Committee on Thursday approved the LISA (Laser Interferometer Space Antenna) mission, the first scientific effort to detect and study gravitational waves from space.
In this way, the European Space Agency gave the “green light” to do so Building tools and ships Space required for the task. This work will begin in January 2025, once a European industrial contractor has been selected, said Spain's Supreme Council for Scientific Research (CSIC), which is contributing to the project.
The three spaceships It will follow the Earth's orbit around the Sun, forming an accurate equilateral triangle in space. It will be for each side of the triangle With a length of 2.5 million km (More than six times the distance between the Earth and the Moon) and the ships scheduled to be launched in 2035 will exchange laser beams at this distance.
Lisa's mission It will detect gravitational waves and ripples in fabric The space-time resulting from the collision of massive black holes in the centers of galaxies, which will enable us to trace the origin of these objects, map their growth until they reach a mass millions of times greater than the mass of the Sun, and determine the role they play. It plays in the evolution of galaxies, according to the Spanish news agency EFE.
The task was created for Capturing the gravitational sound of the universe's first momentsconsistent with current theories, provides a glimpse into the first few seconds after the Big Bang.
Since gravitational waves contain information about the distance to the objects they emit, LISA will also help with this Calculate the change in expansion of the universe Differently from what was used by the Euclid space mission and other studies, which proved the validity of its results.
In our galaxy, a space-based laser interferometer antenna could do just that Detect merged objectssuch as white dwarfs or neutron stars, providing a unique view into the final stages of their evolution and, by determining their location and distance, improving understanding of the structure of the Milky Way.
The mission led by ESA is the result of cooperation between it, the space agencies of Member States (including Portugal), NASA and an international group of scientists, the LISA Consortium.
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