Ten Stunning Photos of the Super Blood Wolf Moon Lunar Eclipse
A lunar eclipse was visible across much of the world last night, bathing the moon in a reddish glow
Behold the Most Distant Object Ever Visited by Spacecraft
The New Horizons spacecraft has transmitted images from its New Year’s Day approach back to Earth
Ring in the New Year With NASA’s Most Distant Planetary Encounter in History
The New Horizons spacecraft is on final approach to the distant Kuiper Belt Object, Ultima Thule, and you can follow along live
The Ten Best Science Books of 2018
These titles explore the wide-ranging implications of new discoveries and experiments, while grounding them in historical context
Scientists Measure the Second With Record-Breaking Precision
A new generation of optical clocks are becoming ever more reliable as physicists work to redefine time
Watch NASA Land the InSight Spacecraft on Mars
The InSight lander has successfully touched down on Mars
Scientists Are About to Redefine the Kilogram and Shake Up Our System of Measures
After more than 100 years of defining the kilogram according to a metal artifact, humanity is preparing to change the unit based on a constant of nature
Smithsonian Curator Reflects on What 'First Man' Gets Right About Neil Armstrong's Journey to the Moon
The new film lays bare the personal sacrifice and peril that accompanied NASA's historic mission
Astronauts Survive Emergency Landing After Russian Rocket Launch Fails
The two crew members landed safely in Kazakhstan after aborting the spaceflight to conduct a high-speed reentry procedure
New Discovery Stirs Up Signs of the Elusive Planet 9
A new minor planet called "the Goblin" is the second most distant known object in the solar system
Space Rock Hunters Are About to Invade Antarctica
Scientists with the ANSMET program will endure six weeks near the South Pole during an annual field trip to find meteorites
Weird Orbital Behaviors Offer Clues to the Origins of Pluto's Moons
Solving the mystery of these satellites could help astronomers understand "Tatooine" exoplanets that orbit binary stars
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