A final flyby on the way to the inner world
What were the Apollo 11 astronauts and controllers really saying to each other?
As the private space company Blue Origin achieves a 100 kilometer suborbital flight, and a spectacular re-landing of its rocket, it's worth pausing to consider the basic energy requirements of spaceflight from the surface of the Earth...
NASA Ames researcher, former astronaut muse on the challenges and advantages of spending time on the high-gravity planet
Steel strut holding down a bottle of high-pressure helium snapped during ascent, though Dragon capsule would have survived if not for software glitch
With a $100-million donation, billionaire Yuri Milner plans to revolutionize the astronomical quest to find alien life
At just before 7:50 A.M. today, July 14, 2015, the New Horizons spacecraft made its closest approach to Pluto. After a 9.5-year, three-billion-mile voyage, the ship got within about 7,750 miles from the surface...
A spacecraft set to fly by Pluto next week has returned photos that reveal more detail of four large dark patches near the equator
A segmented mirror four or five times wider than Hubble's would peer directly at exoplanets
New Horizons went into “safe mode” on Saturday but the probe should be back to normal science operations by Tuesday, exactly one week before it performs the flyby
On January 31, 1961, a brave 3-year-old chimpanzee was strapped into a capsule inside the Mercury Redstone rocket and launched 160 miles above the earth.