I was looking forward to writing a tribute to clear summer skies and great summer stargazing in the Pacific Northwest.

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Mercury is in some sense an enigmatic element. The element and some of its compounds are a natural part of the biogeochemical cycle; while many of these can be deadly poisons at higher levels, ...

Researchers now appreciate that gas planets are more complex than first thought. New findings have implications for our ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

Vt., and a group of more than 30 medical associations have separately requested that the Senate Health, Education, Labor and Pension Committee investigate the termination of the CDC’s vaccine advisory ...

Gravitational assists are an emblematic example of why space travel is hard —it is exactly rocket science, after all. Gravity ...

NASA continues to name its most important space missions after ancient Greek gods, but what is the connection between space ...

In the latest shutdown, the cosmic ray subsystem experiment on Voyager 1 and Voyager 2’s low-energy charged particle ...

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a ...

But the agency may never have had to confront a challenge like the one it faces now: a Trump administration budget plan that would cut funding for NASA’s science programs by nearly 50 percent and its ...

Mercury, the only metal that remains liquid at room temperature, has fascinated humans for millennia. From ancient Egypt to Mesoamerica and China, civilizations had access to this mesmerizing ...