NASA

A score of test tubes with samples of lunar dust brought from the terrestrial satellite on the Apollo 11 spacecraft have been found in an old warehouse in California, United States, after 43 years unaccounted for. They were labeled and dated July 24, 1970.

Here are the finalist images for the NASA image contest: "Tournament: Earth", designed to select the best image of the space agency related to our planet and captured in 2012. Internet users can vote online.

Samples of Martian rock taken last month by NASA's American robot Curiosity contain sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon - some of the chemical ingredients essential for living things. "One of the fundamental objectives of this mission is to find out if there was a habitable environment on Mars," explained Michael Meyer, scientist in charge of the space agency's Martian Exploration Program. "From what we know now, the answer would be yes," he adds.

NASA's twin Van Allen probes mission has identified a hitherto unknown third ring of radiation around Earth, suggesting that there are unexpected structures and processes in these regions of space.

NASA's Spitzer infrared space telescope has obtained new images of the NGC 7000 Nebula, better known as the North American Nebula, in which thousands of young stars born at 1,800 BC can be seen.

In the history of space orbiters there has been an unprecedented moment, because NASA had never had two of them simultaneously nose to nose, as they passed from one hangar to another, like two cross ships

Angela Posada-Swafford has exclusively visited Endeavor, NASA's retired shuttle, before she embarks on her trip to the California Science Center to be exhibited. We show you all the secrets of the ship.

The Lunar Reconnaissance Orbiter (LRO) probe has obtained the most accurate images seen from space to date of the locations where Apollo 12, Apollo 14 and Apollo 17 landed.