News – Page 215 – Astronomy Now

Jupiter’s ‘sunburnt’ Great Red Spot

12 November 2014 Astronomy Now

A new analysis of data from NASA’s Cassini mission in combination with lab experiments contradicts the leading theory that the striking colour of Jupiter’s Great Red Spot is due to reddish chemicals upwelling from below.

Lander manager provides update on Philae status

12 November 2014 Astronomy Now

Philae manager Stephan Ulamec provides an update on the status of the lander following it’s arrival on the surface.

Comet lander leaves mothership, exchanges farewell images

12 November 2014 Stephen Clark

Europe’s comet-bound Philae probe released from its Rosetta orbiter mothership Wednesday, snapping photos of the spacecraft that ferried the lander on a ten-year journey from Earth to comet 67P/Churyumov-Gerasimenko.

Video: Mission control celebrates separation but anxiety builds over landing

12 November 2014 Astronomy Now

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.

Comet landing timeline

12 November 2014 Stephen Clark

Europe’s Philae spacecraft is set to go for landing on a comet, a never-before-tried maneuver that includes a perilous seven-hour descent and an uncontrolled touchdown.

Comet landing is a “go” despite thruster problem

12 November 2014 Stephen Clark

A potential problem with a rocket thruster designed to keep the Philae lander from bouncing off comet 67P/Churyumov-Gerasimenko after touchdown Wednesday will make the probe’s daring descent even more challenging, officials said.

Unprecedented cosmic choreography essential to landing on comet

12 November 2014 Stephen Clark

When a European landing probe goes for a daring touchdown on a comet Wednesday, officials say it would help to have a little luck on their side.

Rosetta mission live coverage

11 November 2014 Astronomy Now

Live coverage from the European Space Operations Centre as the Philae lander races to complete its science mission before its battery power runs out.

Comet lander powered up after electronics glitch

11 November 2014 Stephen Clark

Europe’s Philae lander — still latched inside its mothership — has been activated and should be ready for release Wednesday to begin a daring first-ever descent to a comet, the mission’s flight director said Tuesday.

Active main-belt asteroid 62412 (2000 SY178) develops a tail

11 November 2014 Ade Ashford

Scott Sheppard and Chadwick Trujillo of Carnegie’s Gemini Observatory present recent observations revealing that main-belt Hygeia-family asteroid 62412 (2000 SY178) has a tail.