This animation shows Comet Siding Spring’s path as it comes within 132,000 kilometres (82,000 miles) of Mars on 19 October 2014.
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See Comet Iwamoto’s dash through Leo, Cancer and Gemini before full Moon
Grab your binoculars to catch a glimpse of speedy Comet C/2018 Y1 Iwamoto over the coming week before the glare from a full Moon on 19 February drowns it out. Potentially attaining magnitude +6, the comet passes closest to Earth on 12 February when it can be found traversing Leo at a rate of 7.2 degrees/day. Don’t miss C/2018 Y1’s close enounter with galaxy NGC 2903 on 13 February – by eye, camera, or live online.
Picture perfect postcard from Mount Sharp, Mars
NASA’s Curiosity rover on Mars is currently on the lower slopes of Mount Sharp in a region covered in sandstone where it has just drilled its fifth prospecting hole. Two weeks ago, still in the same general vicinity, Curiosity took a pair of long-range scenic images toward higher regions of the mountain — beautiful views worthy of a postcard home.
No. 9 Rosetta rides with its comet
While 2014 was the year the Rosetta spacecraft celebrated making it into orbit around a comet, 2015 was the year it got down to some serious hard work. Its comet, with the tongue-twisting name 67P/Churyumov–Gerasimenko, made its closest approach (186 million kilometres) to the Sun, a period known as perihelion when the comet would be expected to be at its most active. Rosetta was there to witness this.