Astronomers may have, for the first time, detected a sunlike star erupting with a giant outburst 10 times larger than anything similar ever seen from our sun, a new study finds. The new results may shed light on the effects such powerful outbursts may have had on the early Earth when life was born, and could have on modern Earth and our societies, researchers said. Our sun often unleashes flares that can each pack as much energy as millions of hydrogen bombs exploding at the same time. Solar flares are often accompanied by giant bright tendrils of solar plasma known...