Science, Nasa | featured news

This week's arrival of NASA's Mars rover Curiosity set the stage for a potentially game-changing quest to learn whether the planet most like Earth ever had a shot at developing life, but follow-up missions exist only on drawing boards.

NASA's Curiosity rover has beamed back its first color photo from the ancient crater where it landed on Mars and a video showing the last 2 1/2 minutes of its white-knuckle dive through the Martian atmosphere, a sneak peek of a spacecraft landing on another world.

Nasa has provided almost 300 thumbnails from a sequence of pictures that will eventually be run together as a colour hi-def movie. Visible in the timelapse is the heatshield discarded by the vehicle as it neared the ground. So too is the dust kicked up by the rover's rocket-powered crane. It was the crane that finally settled the robot on to the surface.

The most high-tech rover NASA has ever designed landed safely on Mars early Monday, after a 352-million-mile journey and a harrowing plunge through the planet's atmosphere dubbed “7 Minutes of Terror.” Beforehand, with Curiosity on autopilot, engineers became spectators, anxiously waiting to see if Curiosity executed the routine as planned. "I'm not the nervous type, but I haven't been sleeping all that well the last week or so even though I'm still very confident," said engineer Steven Lee.

After an 8 1/2-month voyage through space, NASA's souped-up Mars spacecraft zoomed toward the red planet for what the agency hopes will be an epic touchdown. The fiery punch through the tenuous Martian atmosphere at 13,000 mph Sunday night marks the beginning of "seven minutes of terror" as the Curiosity rover aims for a bull's-eye landing inside a massive crater near the equator.

Greenland’s surface ice cover experienced a broader thaw during a three-day period this month than in nearly four decades of satellite record-keeping, according to three independent satellite measurements analyzed by NASA and university scientists.

Through a labyrinth of hallways deep inside a 1960s-era building that has housed research that dates back to the early years of U.S. space travel, a group of scientists in white coats is stirring, mixing, measuring, brushing and, most important, tasting the end result of their cooking.

On Aug. 5, as nervous JPL engineers watch, the fate of the rover — capable of pulverizing rocks and ingesting soil — will rest on a landing sequence so far-fetched that some scientists were skeptical it could work.

A new university-led study with NASA participation finds ancient Antarctica was much warmer and wetter than previously suspected. The climate was suitable to support substantial vegetation -- including stunted trees -- along the edges of the frozen continent.