Tag Archives | Solar System

Solar Dynamics Observatory: Year 4

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Four years after its work began, and following last year’s three years in three minutes, Nasa have released another wondrous short video of a year of selected solar activity as viewed by the Solar Dynamics Observatory. Video via Nasa Goddard.  Full-screen viewing recommended.  Stunning. [Credit: NASA Solar Dynamics Observatory. Music: Stella Maris courtesy of Moby Gratis] The sun more…

“an unforgettable journey across the Red Planet.”

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HRSC on Mars Express - Valles Marineris

Curiosity may have been on the surface of Mars for over a year, but ESA’s Mars Express has been in orbit around the Red Planet for almost a decade.  It’s one of a number of ways Mars is being observed, up close and personal.  And, like the Hi-RISE camera on Nasa’s Mars Reconnaissance Orbiter, Mars Express has some specialised instruments more…

Time-lapse: Earth

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As the Guardian’s GrrlScientist says, “Wow. Just wow.”  And, “Oh, I recommend “full screen” mode.” Indeed. Adds – If you watch closely you can see Ireland and the UK pass underneath at around 2mins 30secs in. Time-Lapse | Earth from Bruce W. Berry Jr on Vimeo. Video credits Music: “Manhatta” composed and performed by The more…

A year of Curiosity

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Curiosity view of Mars

One year ago, after “seven minutes of terror“, Nasa’s Mars Science Laboratory, the 900kg rover Curiosity, landed safely on the Red Planet and was soon taking a look around.   [Image Credit: NASA/JPL-Caltech/Malin Space Science Systems]  Full image and caption here. This scene combines seven images from the telephoto-lens camera on the right side of the Mast Camera more…

“There’s no place like home…”

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Cassini image of Earth in Saturn's rings

I didn’t ‘Wave at Saturn’ on 19 July when the Cassini probe, orbiting the gas giant, was taking a high-definition image of the view back home.  I don’t think it encouraged a proper sense of perspective…  But the resultant image is stunning. [Image Credit: NASA/JPL-Caltech/Space Science Institute] It’s not the first time Cassini has looked home.  Nor more…

Three Years of SDO Data – Narrated

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If you enjoyed the recent video from Nasa’s Solar Dynamics Observatory (SDO) – “Three years in three minutes” – but would have liked more of an explanation of what was going on with our own local star… here it is again!  This time, though, extended, and narrated by NASA’s Goddard Space Flight Center heliophysicist Alex Young. more…

Solar Dynamics Observatory: Three years in three minutes

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What it says on the tin.  Three years after First Light, Nasa’s Solar Dynamics Observatory (SDO) has released three stunning minutes of images compiled during its virtually unbroken coverage of the sun’s rise toward solar maximum.  Enjoy!  [Video from NasaExplorer on YouTube. Credit: NASA's Goddard Space Flight Center/SDO] As they note in the associated text During more…

Comet 2013 A1: Rendezvous with Mars…

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Comet 2013 A1 (Siding Spring) orbit

Here’s something to think about whilst waiting to see if Comet ISON will fizzle, or sizzle.  The latest Science at Nasa video looks at the trajectory, and consequences for Mars missions, of Comet 2013 A1 (Siding Spring).  Discovered as recently as 3 January this year, this Oort cloud object will pass “extraordinarily close” to the planet Mars on more…

“It was a meteor strike–the most powerful since the Tunguska event of 1908″

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ScienceAtNasa has a sobering video on the latest information about the visitation by the god Ogdy unexpected meteor strike in the Chelyabinsk region of Russia on 15 February.  Video credit: ScienceAtNasa. From the accompanying ScienceAtNasa press release The Russian meteor’s infrasound signal was was the strongest ever detected by the CTBTO network. The furthest station to record the sub-audible sound was more…

“President Vladimir Putin said he thanked God no big fragments had fallen in populated areas.”

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As I mentioned previously, asteroid 2012 DA14 is due to make its close encounter with Earth later this evening.  Meanwhile, earlier today several hundred people in the Chelyabinsk region of Russia were injured during a visitation by the god Ogdy by debris caused by the unexpected appearance of a relatively large meteor.  It’s reported that a crater 6m (20ft) wide more…

“Will Comet ISON fizzle … or sizzle?”

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Comet C/2012 S1 Oct04 2012

Science at Nasa has a great assessment of the potential for Comet C/2012 S1 (ISON) to become the ‘Comet of the Century’.  Worth watching. Just remember – “comets are like cats: they have tails, and do whatever they want to do.” But as the Science at Nasa assessment notes “Comet ISON is probably at least twice as more…

Further Up Yonder

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Stunning views of the Earth accompany this seasonal message from the crew of the International Space Station.

“In Saturn’s Shadow” – redux

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Saturn In Shadow by Cassini

Saturn doesn’t get the love some of our other gas giants do.  [All hail our friend and lord, Jupiter!  Keeping Ogdy at bay… - Ed]  Indeed.  But, with the help of Cassini, Saturn does provide some wondrous images.  [Image Credit: NASA/JPL-Caltech/Space Science Institute].  From the image’s associated text NASA’s Cassini spacecraft has delivered a glorious view of Saturn, more…

Titan’s Nile River Valley

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Cassini Titan River Valley sideways

Fascinating image from Nasa’s Cassini probe at Saturn, where we’ve previously watched the weather on Titan.  [Image credit: NASA/JPL-Caltech/ASI.]  North is to the right in this view. From the JPLnews press release “Titan is the only place we’ve found besides Earth that has a liquid in continuous movement on its surface,” said Steve Wall, the more…

Jupiter swallows an asteroid – redux

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As Space Weather notes Around the world, amateur astronomers have been scanning the cloudtops of Jupiter for signs of debris from an explosion witnessed by Dan Peterson and George Hall on Sept. 10th. So far the cloud layer is blank. “Several observers have now obtained excellent images on the second and third rotations after the more…

“Thrust is engaged, and we are now climbing away from Vesta atop a blue-green pillar of xenon ions”

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Dawn image of Vesta 17 July 2011

Having arrived at the 530km-wide giant asteroid Vesta in July 2011, in May this year Nasa’s Dawn Mission scientists published some of their findings.  Now Dawn’s ready to head out on the next leg of its journey – Destination [the even larger protoplanet (dwarf planet)] Ceres, ETA 2015. From the JPL press release “Thrust is engaged, and we are now more…

“This is an area on Mount Sharp where Curiosity will go”

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Curiosity on Mars: Mount Sharp geology

More wondrous images from Nasa’s mobile Mars Science Laboratory (MSL), the 900kg rover Curiosity, now safely on the Martian surface in Gale Crater.  And it’s only warming up its instruments.  Here’s a panaroma of the landing site and the prime mission target, Mount Sharp. Focusing in on Mount Sharp… [Image credit: NASA/JPL-Caltech/MSSS] But the images that have more…

“the next time you walk outside on a clear night and see the moon smiling down at you, think of Neil Armstrong and give him a wink”

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Neil Armstrong 1930-2012

Private family man, engineer, US Navy fighter pilot, war veteran, civilian test pilot, astronaut, academic, businessman, reluctant hero, and the first man to walk on the moon, Neil Armstrong has died at the age of 82.  Reg Turnill, who was the BBC’s aerospace correspondent at the time of the first moon landing, gives his thoughts.  Nasa’s tribute more…