Paolo Ferri, ESA’s Head of Mission Operations, expresses relief at the apparently successful release of Philae from the Rosetta mothership but the potential loss of a crucial touchdown system has caused increased anxiety about the landing.
’Oumuamua was a unique object. Now astronomers think there could be trillions just like it
How Rosetta’s comet got its shape
The origin of of Comet 67P/Churyumov-Gerasimenko’s double-lobed form has been a key question since Rosetta first revealed its surprising shape in July 2014. By studying the layers of material seen all over the nucleus, scientists have shown that the shape arose from a low-speed collision between two fully fledged, separately formed comets.
Photos from Rosetta’s Valentine’s Day comet close-up
Europe’s Rosetta spacecraft — six months into its research mission at comet 67P/Churyumov-Gerasimenko — made its closest flyby of the comet’s boulder-strewn nucleus Saturday, capturing new photos and measurements to help scientists unravel how the duck-shaped body is evolving on its orbit around the sun.