Sun emits powerful solar flare, causes blackouts: NASA

X-class denotes the most intense flares, while the number provides more information about its strength.

Sun emits powerful solar flare, causes blackouts: NASA

The Sun has emitted a strong solar flare severely affecting radio communications on Earth, according to NASA.

The flare, classified as X1.2, is the seventh solar flare to hit Earth this year, and was captured by NASA's Solar Dynamics Observatory, which watches the Sun constantly.