Archive – Page 348 – Astronomy Now

Giant storm on Uranus in the 2.2-micron IR band

Amateur astronomers image extreme storms on Uranus

13 November 2014 Ade Ashford

Far from always being a featureless blue-green dot in backyard telescopes, both amateur and professional astronomers have recently imaged extreme weather features on Uranus.

Philae sends first image from comet

13 November 2014 Stephen Clark

Europe’s Philae lander radioed home Thursday, sending the first picture from the surface of a comet hours after a dramatic descent.

European space probe makes first landing on a comet

12 November 2014 Stephen Clark

After making history as the first spacecraft to touch down on a comet, Europe’s Philae lander collected data on the rugged alien world’s environment and may have rebounded into space before settling back on the surface, scientists said Wednesday.

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.