Explanation:

Only statement 2nd is incorrect.

Proxima Centauri

• Proxima Centauri is 4.2 light-years away from the Sun, considered a close distance in cosmic terms.
• Its mass is about an eighth of the Sun’s, and it is too dim to be seen with the naked eye from Earth.
• Although it has a very low average luminosity, Proxima Centauri is a flare star that randomly undergoes dramatic increases in brightness because of magnetic activity.
• Astronomers recently picked up an “intriguing” radio wave emission from the direction of Proxima Centauri.

Hence option 2nd is correct.