The sun is putting on a fireworks show again. NASA cameras captured images of what the agency is calling at least two “significant” solar flares. The first one peaked at 7:42 a.m. ET Tuesday, followed by a second, lesser blast at 8:52 a.m. ET. The short-lived explosions were expected to disrupt high-frequency radio communications on Earth, although NASA scientists said they pose no threat to humans. Even with all its […]