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

Posted by ESA Mars Express Team on 2014/03/31 05:46 CDT | 1 comments

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.

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

Posted by ESA Mars Express Team on 2014/03/24 03:44 CDT

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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Comet Siding Spring Mars encounter: How to determine the orbit of a comet?

Posted by ESA Mars Express Team on 2014/03/12 02:02 CDT | 2 comments

In the quest to track Comet Siding Spring, the Mars Express team tells us how computing the orbit of a comet isn't as straightforward as science fiction would have us believe.

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Intro Astronomy Class 5: Venus (continued) and Mars

Posted by Bruce Betts on 2014/03/06 10:49 CST

Continue exploring Venus and begin looking at Mars in this video of class 5 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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Hypervelocity Cratering and Riding Out the Risk

Posted by ESA Mars Express Team on 2014/03/06 07:34 CST

Today's update from the Mars Express team contains the realisation that, for some of the risks associated with October's Siding Spring flyby, there may not be much the team can do.

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Space is really, really big – except sometimes it isn’t

Posted by ESA Mars Express Team on 2014/03/04 11:19 CST

Here's the next installment in the continuing story of how the Mars Express team is preparing for Comet Siding Spring flyby, 19 October 2014. This week: introducing the spacecraft's subsystems and structure – and wondering how we can absorb impacts.

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Comet Siding Spring Mars encounter: Why orienting Mars Express is the heart of the challenge

Posted by ESA Mars Express Team on 2014/02/28 12:25 CST

Today's post continues where we started last week with an update from the Mars Express Flight Control Team at ESOC on their preparations for the 19 October Comet Siding Springs flyby. Today: defining the challenge!

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Mars Express team readies for Siding Spring

Posted by ESA Mars Express Team on 2014/02/26 01:31 CST | 3 comments

On Sunday, 19 October 2014, at around 18:30 UTC, comet C/2013 A1 – known widely as 'Siding Spring' after the Australian observatory where it was discovered in January 2013 – will make a close fly-by of Mars.

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New Hills, Old Secrets

Posted by Bill Dunford on 2014/02/10 08:04 CST | 1 comments

Exploring a set of newly named hills on Mars reveals tantalizing clues to the planet's story.

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New Views of Martian Weather

Posted by Bill Dunford on 2014/01/20 12:03 CST | 3 comments

The latest postcards from Mars Express feature cloudy skies.

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What's up in planetary missions in 2014

Posted by Emily Lakdawalla on 2013/12/31 01:15 CST | 4 comments

With the New Year upon us, what can we look forward to in 2014? For me, the main event of 2014 is that ESA's Rosetta mission finally -- finally! -- catches up to the comet it has been chasing for a decade. We will lose LADEE, gain two Mars orbiters, and launch Hayabusa 2. The year begins with an amazing 24 spacecraft exploring or cruising toward various planetary destinations.

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The Mists of Mars

Posted by Bill Dunford on 2013/12/09 10:58 CST | 3 comments

Two grand canyons fill with fog, one on Earth and one on Mars.

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Mars' chemical history: Phyllosian, Theiikian, Siderikian, oh my

Posted by Emily Lakdawalla on 2013/12/05 01:08 CST | 4 comments

I'm returning to the deep dive into the literature that began with articles about lunar basins and then explored the geologic time scales of Earth, Moon, and Mars. Now it's time to catch up to the last decade of Mars research and learn what "phyllosian", "theiikian", and "siderikian" eras are.

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Martian Maps: the North Pole

Posted by Bill Dunford on 2013/11/20 05:24 CST | 2 comments

The polar plains, charted in unprecedented detail.

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Noachian, Hesperian, and Amazonian, oh my! --Mars' Geologic Time Scale

Posted by Emily Lakdawalla on 2013/10/25 04:32 CDT | 4 comments

The Martian Geologic Time Scale is a lot more complicated than the Moon's.

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Google+ Hangout with ESA about Europe's Mars exploration

Posted by Emily Lakdawalla on 2013/10/04 09:00 CDT

The European Space Agency invited me to join Mars Express project scientist Olivier Witasse, and spacecraft oeprations manager Michel Denis for a Hangout on Europe's recent and future exploration of Mars and Phobos.

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Super cool Phobos and Deimos animations from Mars Express

Posted by Emily Lakdawalla on 2013/10/03 02:17 CDT

I've been delving in to the Mars Express image archive this week, checking out its images of Phobos, and found a couple of really cool time-series of images to assemble into animations.

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Riding Along With Mars Express

Posted by Bill Dunford on 2013/09/16 06:03 CDT | 1 comments

Take a spin around the Red Planet with the trusty orbiter.

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A special Phobos eclipse

Posted by Emily Lakdawalla on 2013/08/20 07:37 CDT | 4 comments

Those sneaky scientists on Curiosity managed to catch a Phobos transit of the Sun with one set of cameras, and to watch its shadow darkening the surface with another. COOL!

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A Turn of the Kaleidoscope

Posted by Bill Dunford on 2013/08/12 08:03 CDT | 8 comments

New images from Mars.

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