American astronaut Don Pettit has shared some striking footage captured from the ISS showing star trails and city lights.

Here are top five images by NASA Hubble space telescope ... This process helps cool the planet. This tangled planetary nebula is the final stage of a medium-sized star like our Sun—billions ...

The NASA video above shows a montage of high-resolution images from the rover's CacheCam ... Original article source: Cool rocks: NASA's Mars rover shows off its rock core collection ...

Since leaving Earth on January 15, NASA's Blue Ghost lander has been sending back some stunning images of space ... One commenter wrote: 'What a cool time to be alive! The Moon up close once ...

New images captured by NASA's Curiosity rover show colorful clouds ... Gravity waves, which cool a planet's atmosphere, could be a factor, he said. "Carbon dioxide was not expected to be ...