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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

A right old comet kerfuffle…

Stuart Atkinson • July 18, 2014 • 16

A European space enthusiast, children's author, and volunteer astronomy outreach worker asks for more images from Rosetta.

Quick Rosetta update: Churyumov-Gerasimenko is a contact binary!

Emily Lakdawalla • July 15, 2014 • 17

I could not wait to post these amazing new images of comet Churymov-Gerasimenko from Rosetta. The nucleus of the comet is clearly a contact binary -- two smaller (and unequally sized object) in close contact.

Rosetta completes another rocket burn, spies decreasing activity on comet

Emily Lakdawalla • June 19, 2014

Rosetta has now completed its three largest rendezvous burns as it approaches ever closer to comet 67P/Churyumov-Gerasimenko. Beginning on July 2, Rosetta will now conduct weekly burns, through August 6. Meanwhile, the cometary activity of April and May has quieted again, leaving the comet looking smaller than it did before.

Deep Impact's last images

Emily Lakdawalla • May 27, 2014

Today I received an email notification of new public releases of some image data sets. I always love seeing new public space image data, but this notification was bittersweet: it included the first public release of the very last image data returned to Earth by Deep Impact, of a distant comet ISON.

One Night Only, a New Meteor Shower that May Be Spectacular?

Bruce Betts • May 22, 2014 • 3

A new meteor shower, the Camelopardalids, will be peaking Friday night/Saturday morning (May 23/24). Especially if you are in North America, you are well positioned to see what may (or may not) be a spectacular show. In either case, scientists will learn about a comet’s history, and you can have a fun night looking at the sky.

Intro Astronomy 2014. Class 10: Trans Neptunian Objects including Pluto, KBOs, Comets

Bruce Betts • April 18, 2014

Explore the worlds beyond Neptune including Pluto, Kuiper Belt Objects and comets in this video of class 10 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Opposition time for Mars, and several months of dancing with the stars

ESA Mars Express Team • April 08, 2014 • 1

The Mars Express team showcases some of the best viewing opportunities of Mars in 2014, including how to spot Comet Siding Spring when it flies past Mars this October.

Comet Siding Spring Mars encounter: Cosmic bully spotted by ESA and NASA

ESA Mars Express Team • March 31, 2014

Hubble has taken some great new images of our 'friend,' Comet Siding Spring, due to pass by Mars at less than 136,000 km on October 19 – less than half the distance between Earth and our moon.

Comet spotted! Rosetta's first sight of Churymov-Gerasimenko since wakeup

Emily Lakdawalla • March 27, 2014 • 2

Rosetta has turned on its cameras and sighted its comet for the first time since waking from hibernation. Next activity: waking the Philae lander.

Comet Siding Spring Mars encounter: Ya gotta have a little ‘tude

ESA Mars Express Team • March 24, 2014

In the latest update on how the Mars Express flight control team is planning to deal with Comet Siding Spring is all about attitude -- and hiding behind the biggest guy in the fight.

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