The sun's activity is ramping up, and now NASA's Solar Dynamics Observatory (SDO) has captured some of the images of solar flares.
NASA scientists have uncovered a starting new find on Saturn's moon, Titan. They've found an unexpected high-altitude methane ice cloud, similar to exotic clouds formed high above Earth's own poles.
On Thursday, Oct. 23, the moon passed between the Earth and the sun, causing a solar eclipse. Now, scientists have released an image of a "ring of fire" that captures this particular eclipse at its most stunning.
A pulsating star that appears to shine with the energy of 10 million stars may just be one of many in space.
Astronomers have managed to image an exploding fireball from a nova that erupted last year.
Using extremely faint light from galaxies 10.8 billion light-years away, scientists created one of the most complete, 3D maps of the early universe.
NASA's Fermi detected a rapid-fire storm of high-energy blasts from a magnetar, a highly magnetized neutron star.
Sky gazers are in luck today. A partial solar eclipse will occur across North America this Thursday during the evening hours, so make sure to catch a glimpse--as long as the weather cooperates.
Space debris is starting to be a huge problem for satellites orbiting Earth. Now, it turns out that the Suomi NPP satellite experienced a near-miss when it comes to avoiding space trash in Earth's orbit.
NASA has announced that the sun erupted with another significant solar flare on Oct. 22, 2014.
Scientists have created the most complete census of comets yet around another star.