The northern lights may stretch far south this weekend as a solar storm boosts visibility across U.S. states.

A coronal mass ejection from the Sun could cause the aurora to appear farther south than usual on Monday night, according to ...

Venus, now rapidly brightening as the “Evening Star,” is getting closer to Jupiter as night passes, as the two planets ...

Nature offers many dazzling displays, from jagged flashes of lightning to radiant sunsets. But perhaps one of the most elusive natural phenomena is the shimmering waves of green, pink, and red dancing ...