NASA's Voyager 1, launched in 1977, is nearing the edge of the solar system and may already be "dancing on the edge" of outer space, the scientists behind the project said Tuesday.
NASA transmitted the first song to be broadcast from Mars on Tuesday, by Grammy-winning US musician will.i.am, as part of efforts to inspire young people to get interested in science.
More than 40 years after Neil Armstrong landed on the moon, humans continue to push the frontiers of space exploration but missions are being tempered by costs, a trend that concerned the astronaut.
US President Barack Obama on Monday ribbed scientists behind NASA's roving robot Curiosity, instructing them to let him know right away if they found life on Mars.
NASA said Friday that a mysterious spot shown on a photograph sent back to Earth by the Mars rover Curiosity was the crash landing of its rocket stage.
NASA's experimental moon lander crashed and burst into flames seconds after takeoff Thursday due to a hardware fault, the US space agency said, prompting an investigation but no casualties.
NASA rover Curiosity's second day on Mars went "flawlessly," NASA said Wednesday, confirming the antennas, communication links and generator on the $2.5 billion robot are all working well.
After its first day on Mars, NASA's rover Monday sent back to Earth stunning images of its crater landing site and the mountain it aims to climb in the hunt for signs of life.
With a mixture of tense nerves and confidence, NASA counted down Sunday to the landing of its largest ever robotic rover on Mars, where it will search for signs that life may once have existed.
All was well ahead of its nail-biting mission to Mars, with its most advanced robotic rover poised to hunt for clues about past life and water on Earth's nearest planetary neighbor.
The Russian cargo ship that undocked from the International Space Station to perform tests managed to re-couple Sunday after a failed attempt earlier in the week.
Two scientific papers published Sunday disproved a controversial claim made by NASA-funded scientists in 2010 that a new form of bacterial life had been discovered that could thrive on arsenic.