The transit of Venus is so rare that only 8 transits have occurred since the invention of the telescope
Venus' next transit of the sun isn't until 2117—so read about what to watch for and make sure to look to the skies
For the first time in 18 years, a solar eclipse will be visible in the continental United States
The renowned physicist enjoyed the sensation of weightlessness while 24,000 feet over the Atlantic
What are those burning questions about the cosmos that still baffle astronomers today?
On Star Wars day, we take a look at the science behind the series' most popular spacecraft and the force fields it flies through
The moon's closest approach to earth will coincide with a perfectly full moon
Get a sneak peak at the new project that will search for mysterious cosmic energies that drive our universe
With the spacecraft poised to leave our solar system, the writer who helped compile the time capsules they carry reflects on our foray into outer space
New data show that nearly 35 years after their launches, NASA's Voyager probes are now at the outermost reaches of the solar system
A group of big-name tech billionaires wants to open up a new frontier in space--mining space rocks
From a whale song to a kiss, the time capsule sent into space in 1977 had some interesting contents
Earlier this week, a NASA telescope captured one of the most stunning solar flares in years
A new survey of a slice of the distant reaches of the universe reveals 200,000 galaxies
Saturn's Enceladus is spurting water vapor, organic material and salt—a microbe-friendly composition
A new study finds that a strong solar storm could disable satellites for a decade
A mass of debris from satellites and space missions is orbiting our planet—and it may be growing all the time
Comets dive into the sun frequently, but previous ones had been too small and dim to be seen against the glaring backdrop
Students in England concluded that the Star Wars space station could easily have destroyed an Earth-like planet
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