Planetary Science – Page 10

Scientists narrow list of landing sites for NASA’s next Mars rover

14 February 2017 Stephen Clark

A rover NASA plans to launch to Mars in 2020 will likely explore one of three locations selected last week by a scientific advisory group, which picked candidate landing sites that were once homes to ancient lakes and hot springs.

Juno dives over Jupiter’s cloud tops with main engine still offline

2 February 2017 Stephen Clark

NASA’s Juno spacecraft made a high-speed pass less than 3,000 miles over Jupiter’s turbulent clouds Thursday, taking dozens of pictures, measuring radiation and plasma waves, and peering deep inside the planet’s atmosphere, but officials still have not cleared the orbiter’s main engine for a planned maneuver to position the probe for improved science observations.

NASA’s OSIRIS-REx probe moonlights as asteroid sleuth

1 February 2017 Stephen Clark

On course to collect specimens from asteroid Bennu after its launch last year, NASA’s OSIRIS-REx spacecraft will search this month for objects sharing an orbit with Earth, a bonus science opportunity to locate possible fragments of the primordial building blocks that formed our home planet.

Cassini offers best-ever view of Saturn’s rings

30 January 2017 Stephen Clark

A sequence of images captured by NASA’s Cassini spacecraft last month are the most detailed pictures ever taken of Saturn’s famous rings, revealing complex, unexplained bands and the movements of dozens of tiny icy moonlets spinning around the planet.

Japanese spacecraft spots planet-spanning wave on Venus

22 January 2017 Stephen Clark

Images from Japan’s Akatsuki spacecraft have revealed a gigantic wave in the atmosphere of Venus, and scientists say it may be the largest such feature in the solar system.

New Horizons to continue mission of discovery with Kuiper Belt encounter

22 January 2017 Stephen Clark

Scientists planning the the next phase of NASA’s New Horizons mission, a robotic craft that completed the first exploration of Pluto in 2015, are going into the flyby of a frozen, faraway city-sized clump of rock on New Year’s Day 2019 armed with little knowledge of the target lurking around 4 billion miles from Earth.

Saturn’s shepherd moon Daphnis makes waves

19 January 2017 Stephen Clark

NASA’s Cassini spacecraft has captured the first close-up view of Daphnis, one of at least 62 moons found orbiting Saturn, plowing a path through the planet’s icy rings and raising waves in its wake.

Two asteroid missions get nod from NASA

11 January 2017 Stephen Clark

NASA has selected two robotic missions to visit asteroids in the early 2020s from a field of proposed interplanetary probes, approving projects to explore a metallic relic from the early solar system and a half-dozen so-called Trojan objects left over from the formation of the outer planets.

NASA’s NEOWISE mission spies one comet, maybe two

30 December 2016 Stephen Clark

NASA’s NEOWISE mission has recently discovered some celestial objects traveling through our neighborhood, including one on the blurry line between asteroid and comet. Another — definitely a comet — might be seen with binoculars through next week.

Internal debris may be causing problem with Mars rover’s drill

29 December 2016 Stephen Clark

Engineers believe a piece of foreign object debris may be intermittently stalling a motor needed to place the Curiosity Mars rover’s drill bit onto rocks, and the robot’s ground team is assessing the source of the potential contamination.