Design, fear, and greed. After 25 years of obsessing over Mars, Elon Musk announced that SpaceX has shifted focus from ...

Jupiter, the largest planet in the solar system, isn’t exactly the size and shape scientists believed it was. New measurements from the Juno spacecraft show ...

The biggest planet in our Solar System just got a little smaller. Okay, not physically, but our measurements of Jupiter just got more precise, and it turns out there's slightly less of the giant than ...

When NASA’s Juno spacecraft began its close passes over Jupiter, scientists expected to confirm long-standing theories.

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

As children, many of us remember lying on terraces or open fields, trying to count stars. One, two, three and then losing ...

Key takeawaysIf a gas giant planet is big enough to ignite deuterium fusion, it becomes a brown dwarf instead of a planet.

NASA shared that with a more precise shape, it will help astronomers understand data from planets seen passing in front of ...

With Area 51 ruled out by President Obama, where might aliens really be hiding? Scientists have now revealed the best candidates.

NASA describes deep hydrogen compression that eventually forms conductive metallic liquid, making Jupiter feel less like Earth and more like a continuous gradient of states. That alone breaks the old ...

SpaceX is reportedly eyeing a dual-class share structure for its highly anticipated IPO later this year. The move would let billionaire founder Elon Musk maintain iron-grip control over the rocket ...

Now, a study led by SETI Institute scientist Matija Ćuk proposes an explanation linking the formation of the moons and rings, centering on the possibility that Titan is the product of a moon merger.