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Cosmology

What is Astrophysics?

  Know about Astrophysics:- The Sun:   The Sun is our closest star and the source of all life on Earth.  Astrophysicists study the Sun's atmosphere, its magnetic field, and its evolution. Opens in a new window sun.ethz.ch Opens in a new window eos.org Stars:   Stars are giant balls of gas that produce heat and light through nuclear fusion.  Astrophysicists study the formation, evolution, and death of stars. Opens in a new window web.gps.caltech.edu Galaxies:   Galaxies are large groupings of stars, gas, and dust.  Astrophysicists study the formation, evolution, and interactions of galaxies. Opens in a new window www.elisascience.org Black holes:   Black holes are incredibly dense objects with gravity so strong that nothing, not even light, can escape.  Astrophysicists study the properties and behavior of black holes. Opens in a new window www.wired.com Dark matter:   Dark matter is a mysterious substance that makes up about 85% of the ma...
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The first satellite who escaped the solar system.

Voyager 1

The first satellite who escaped the solar system'

  •   First satellite to escape the solar system is the Voyager 1 spacecraft. Launched by NASA on September 5, 1977, Voyager 1 was designed to explore the outer planets of our solar system. It completed flybys of Jupiter and Saturn, gathering valuable data and sending back stunning images of these distant worlds.
  • After its mission to study the outer planets was completed, Voyager 1 continued on its trajectory, moving away from the Sun and venturing into interstellar space. On August 25, 2012, it officially became the first human-made object to cross the heliopause—the boundary where the influence of the Sun's solar wind gives way to the interstellar medium.
  • Voyager 1 is still operational and continues to send back scientific data as it continues its journey beyond our solar system. It carries a golden record known as the "Voyager Golden Record," which contains sounds and images representing Earth and human civilization, in the hopes that it may someday be discovered by extraterrestrial beings.

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