After nearly a decade of development, construction and testing, the world’s most advanced instrument for directly imaging and analyzing planets around other stars is pointing skyward
The declassification of historical intelligence satellite imagery has been a boon to scientists, environmentalists and other researchers since it began
To find a way of fending off global warming, scientists sometimes look to nature.
Congress got the word from NASA on Tuesday about its options for dealing with the threats posed by asteroids and comets
NASA's Hubble Space Telescope will have two opportunities in the next few years to hunt for Earth-sized planets
NASA's Mars rover Opportunity is studying the area of contact between a rock layer formed in acidic wet conditions long ago and an even older one
Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.
The United States has killed four American citizens in drone strikes in Yemen and Pakistan.
NASA's new short film "Water Falls" invites the public along for the ride as scientists follow water around the globe — on a globe.
Over the last hundred years, the human population has exploded from about 1.5 billion to more than seven billion, driving an ever-increasing demand for resources.
The public will have the opportunity to view and learn more about the Tuesday, April 15 total lunar eclipse on NASA television, the agency’s website, and social media.
The manual introduces the fundamentals of cyber operations, or "cyber electromagnetic activities" (CEMA), defining terms and identifying important operational factors and constraints.
In a rare admission of faulty reporting on CBS News’ authoritative “60 Minutes” newsmagazine, correspondent Lara Logan acknowledged the program was misled
The sun emitted a mid-level solar flare, peaking at 5:13 a.m. EST on Jan. 7, 2014.
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