M51 ULS 1b - M51 Whirlpool Galaxy Extragalactic Planet Candidate

The video discusses the Whirlpool Galaxy, also known as Messier 51, and its significance as the location of the first exoplanet found outside the Milky Way Galaxy. This exoplanet, located in the constellation of Kenneth, orbits a sun-like star that is part of an X-ray binary system with a neutron star or black hole. The discovery was made using NASA's Chandra X-ray Observatory by observing the dimming of X-rays, a method known as transits. The exoplanet is named M51 U LS1B and is approximately 28 million light years from Earth.

What is the name of the galaxy where the first exoplanet outside the Milky Way was found?

• Sombrero Galaxy

• Triangulum Galaxy

• Whirlpool Galaxy

• Andromeda Galaxy

What tool did researchers use to detect the dimming of X-rays from an X-ray binary?

• Hubble Space Telescope

• James Webb Space Telescope

• NASA Chandra X-ray Observatory

• Spitzer Space Telescope

What is an X-ray binary?

• A system where two stars orbit each other

• A system where a sun-like star orbits a black hole or neutron star

• A system where a planet orbits a star

• A system where two black holes orbit each other

How was the exoplanet discovered?

• By observing transits

• By detecting radio signals

• By observing gravitational waves

• By measuring star wobble

What is the name given to the discovered exoplanet?

• M31 U LS1B

• M51 U LS1B

• M33 U LS1B

• M81 U LS1B