A little sunlight applied to solar panels proved the cure for what ailed the European Space Agency's Philae lander, which had been dormant from lack of power since November.
Scientists say the Phoebe ring is "more than 200 times as big across as Saturn itself." They used a special infrared space telescope to get the best look yet at the massive ring of black dust.
A giant balloon carried the Low-Density Supersonic Decelerator to an altitude of 120,000 feet to test the device, which could be used on Mars missions. It seemed to deploy correctly, then tear apart.
The semi-annual phenomenon in late May and mid-July each year occurs when the Sun aligns with the street grid in Manhattan, casting a shaft of light between the skyscrapers.
The first of two satellites carrying the sail is set to launch later this month. A second, scheduled for launch next year, will go into higher orbit to fully test the concept.