A photo of the Sun from NASA’s orbiting Solar Dynamics Observatory reveals an enormous coronal hole, a gap in the Sun’s outer layer and magnetic field. Images released by NASA show a massive hole in the Sun, 50 times the size of Earth, which is blasting an ultrafast solar wind towards our planet. The image of the Coronal hole was taken be NASA’s orbiting Solar Dynamics Observatory... 

In this artist’s concept, the moon Ganymede orbits the giant planet Jupiter. New data suggests Jupiter’s moon Ganymede, the largest in the solar system, has an underground ocean which contains more water than all of Earth’s surface water combined, according to NASA. NASA scientists were able to use the Hubble Space Telescope to collect more than seven hours of data about the auroral belts...