Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

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After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

But there's something really weird about Venus. Though the hellish world has beautifully preserved impact craters on its ...

A 3D map of our cosmic neighborhood has revealed hot and cold regions as well as an "escape tunnel" from our local bubble.

Surface features of Uranus' icy moon Miranda point to the existence of a once deep ocean, one that still may exist today.

Beyond Neptune lies the Kuiper Belt, a vast region of icy bodies that holds the secrets to the solar system’s formation ...

A Chinese Mars rover may have found evidence of an ancient ocean on the arid Red Planet. According to a new paper in the ...

The plasma magnet drive with dynamic soaring is a system that could be plausibly scaled for human crewed missions up to 2-3% ...

How do you electrify a populous city’s transit without destabilizing its grid? New research into Beijing’s 27,000-bus system ...

A study in Nature finds plants have been absorbing 31 percent more carbon dioxide from the atmosphere than previously assumed ...

When the tumors were treated with anti-Ly6a antibodies, effectively releasing the brakes and allowing the immune system to ...