NASA discovers new planet outside the Milky Way

• NASA has discovered a new planet outside our galaxy. It is likely that this body may be the first planet to be discovered outside the Milky Way. 
• So far, about 4000 exoplanets have been discovered but all of them are located within our galaxy.
• This possible planet was discovered through the Chandra X-ray Telescope. It is located in the Messier 51 galaxy, 2,800,000 light years away from our Milky Way. 
• The exploration of this planet is based on transit. This planet blocks the light of other stars while orbiting one star.

Important Takeaways

About Galaxy (Milkyway)

• Age: 13.51 billion years
• Radius: 52,850 light years
• Origin of Universe: Big Bang Theory
• Shape of Milky Way Galaxy: Spiral
• Time taken by the Sun to revolve around the centre of our galaxy: 25 Crore years
• Propounded the theory of Black Hole: S Chandrasekhar
• Brightest star outside the Solar System: Sirius