Stellar Parallax:
Astronomers have demonstrated a pioneering technique using stellar parallax to navigate spacecraft in deep space without relying on Earth-based beacons. s the earth orbits the sun, a star’s position relative to other stars might seem to shift. This is because every six months, the earth is on opposite sides of the sun, providing two different viewpoints. The New Horizons spacecraft observed Proxima Centauri (4.2 light-years away) and Wolf 359 (7.9 light-years away) from a distance of 7 billion km from Earth.
