Planetary Science – Page 7

Surprise methanol detection points to evolving story of Enceladus’s plumes

4 July 2017 Astronomy Now

A serendipitous detection of the organic molecule methanol around an intriguing moon of Saturn suggests that material spewed from Enceladus undertakes a complex chemical journey once vented into space. This is the first time that a molecule from Enceladus has been detected with a ground-based telescope.

Earth-based views of Jupiter to enhance Juno flyby

30 June 2017 Astronomy Now

Telescopes in Hawaii have obtained new images of Jupiter and its Great Red Spot, which will assist the first-ever close-up study of the Great Red Spot, planned for July 10.

Mars rover Opportunity on walkabout near crater rim

28 June 2017 Astronomy Now

NASA’s senior Mars rover, Opportunity, is examining rocks at the edge of Endeavour Crater for signs that they may have been either transported by a flood or eroded in place by wind.

Jupiter’s “String of Pearls”

26 June 2017 Astronomy Now

This enhanced-color image of Jupiter’s bands of light and dark clouds was created by citizen scientists Gerald Eichstädt and Seán Doran using data from the JunoCam imager on NASA’s Juno spacecraft.

Dawn mission managers await NASA decision on spacecraft’s future

17 June 2017 Stephen Clark

The future of NASA’s Dawn spacecraft, running low on hydrazine fuel and now flying around the dwarf planet Ceres without the help of internal pointing wheels, will be decided in the coming weeks by top space agency managers.

Ride with NASA’s Juno orbiter over turbulent Jupiter

30 May 2017 Stephen Clark

Take a trip around Jupiter with NASA’s Juno spacecraft in a time-lapse animation created from a sequence of images taken during the probe’s last close-up flyby of the gas giant May 19.

Cassini survives closest brush with Saturn’s inner ring

30 May 2017 Stephen Clark

Barreling through space near the inner edge of Saturn’s wispy D ring, NASA’s Cassini spacecraft shielded itself from bits of ice and dust Sunday as the probe made its most dangerous plunge close to the planet, collecting spectacular edge-on views of Saturn’s rings with an on-board camera.

Earlier launch of NASA’s Psyche mission touted as cost-saving measure

26 May 2017 Stephen Clark

A NASA spacecraft set to explore a metallic asteroid for the first time will launch in 2022, a year earlier than originally planned, and reach its destination in 2026, four years ahead of schedule, giving ground teams a shorter wait for the mission’s scientific payoff and shaving $100 million off the project’s total cost, officials said Wednesday.

Probe into crash of ESA lander recommends more checks on ExoMars descent craft

24 May 2017 Stephen Clark

Investigators who studied the crash of the European Space Agency’s Schiaparelli lander on Mars last year have recommended more stringent testing and computer modeling before the launch of a joint European-Russian landing craft in 2020 to avoid a repeat of the mistakes that doomed the probe’s descent through the Martian atmosphere.

NASA’s Cassini spacecraft aims to skirt Saturn’s innermost ring

22 May 2017 Stephen Clark

Fresh off its fifth passage through a gap between Saturn’s atmosphere and rings, NASA’s robotic Cassini spacecraft is looping toward a close brush with the planet’s innermost ring next week, when the probe will again use its high-gain antenna as a shield against icy particles that may lie in its path.