The moon isn't a simple sphere, and scientists have long struggled to explain why the shape of the moon deviates from a spherical shape; now, they may have an answer, and it all has to do with the way the moon was formed in the first place.
Astronomers have now solved a decades-old mystery about a fog of low-energy X-rays seen over the entire sky.
Mercury and Earth may both be rocky planets with iron cores, but their magnetic fields are drastically differently. Now, researchers have found that Mercury's interior may differ in a way that explains why it has such a bizarre magnetic field.
Scientists have taken a closer look at our galaxy and our neighbor, Andromeda, and have found that the Milky Way may actually be less massive than expected.
NASA's Mars rover Opportunity has reached a new mile marker. It's officially driven more than 25 miles after landing on the Red Planet in 2004, which means that it now holds the off-Earth roving distance record.
Set your sights on the skies tonight, because you may be in for a treat. The Delta Aquarid meteor shower is set to peak tonight and may be more stunning than usual due to the new moon, which will ensure dark skies.
Scientists have identified 101 distinct geysers erupting on Saturn's icy moon Enceladus.
With the help of the NASA/ESA Hubble Space Telescope, astronomers have managed to create the most precise map of a distant galaxy cluster.
Astronomers may have come up dry when it comes to searching for water on other planets.
Satellite galaxies move in rotating discs around larger ones. Yet these galaxies aren't predicted by current models, leaving astronomers baffled.
Titan, Saturn's largest moon, has intrigued astronomers for years. Now, one scientist has used newly gathered data to confirm a model of Titan's atmosphere, revealing a bit more about this distant world.