Launched from Kazakhstan with a designer born in Ukraine, the success of Sputnik is one the most celebrated Soviet achievements in Russia.
This is a key milestone in NASA’s longer-term plan to send humans to Mars.
Photos shared on Twitter and NASA's website show damage to the Johnson Space Center and Kennedy Space Center.
As the two-decade mission draws to a close, what has it revealed about the second largest planet in our solar system?
The new arrivals bring the total crew on the station to six.
Photos are already streaming in from space, even before residents make it back home.
For the third day in a row, external cameras on the International Space Station captured dramatic views of the storm whipping across the Atlantic.
The X9.3 solar flare was the largest since 2005 when an X17 flare was recorded.
As a triumphant mission to Saturn ends, its lead imaging scientist recalls her favorite photographs and moments.
Space agency will host a live event to celebrate the probe on September 5.
The president faced criticism from both sides for his pick to serve as senior space science adviser, lead the agency and manage its resources.
The compilation includes views from the International Space Station, the Solar Dynamics Observatory and other spacecraft.
Cassini will hurl itself into Saturn on September 15, but it has big questions to answer first.
You will not get another chance to see Florence in centuries but you have some very good options this weekend.
Florence is three miles wide and will pass at a distance of over 145 million miles.
NASA will send a lander called InSight to Mars next year. Here’s what it wants to find out.
The spacecraft is conducting a series of unprecedented final orbits before it burns up on September 15.
The celestial event drew millions of people to YouTube, Facebook and Twitter.