NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare. See at time-lapse of ...

Solar flares accelerate energetic electrons that escape into interplanetary space, guided by the Parker spiral magnetic field ...

Home pregnancy tests that use colored streaks to indicate positive results may display an evaporation line (evap line). This is a colorless streak that occurs when urine dries on the test strip.

NASA has issued a major geostorm alert after detecting intense solar activity that could impact Earth’s satellites, communications, GPS systems, and even power grids. The public is advised to stay ...