Weekly Links

Down To Earth

Here are some new high resolution images from the SpaceX booster flyback landing last week.

And here is a nice shot of the booster being returned to the SpaceX launch complex.

United Launch Alliance has ordered more of the RD-180 engines that power its Atlas rockets. This is the Russian-built engine that has been causing political controversy since early 2014, since American politicians understandably don’t want our military satellites dependent on a geopolitical adversary’s technology. The new engines are only planned to be used for civil and commercial launches.

Meanwhile, the USAF awarded a bunch of money to several companies for propulsion development so that RD-180s won’t have to be purchased in the future.

Components of ESA’s ExoMars mission have arrived at the launch site in Kazakhstan. Launch is coming up quick in March!

Russia’s space agency, Roscosmos, was dissolved by law this week under the ongoing reorganization of the space industry going on in that country.

Oak Ridge in Tennessee has produced the first Plutonium-238 in decades. This non-weapons grade nuclear fuel is needed for the RTG power sources of deep space missions.

In Orbit

Only two launches since my last post on December 22nd: a Russian Proton rocket* with a communications satellite and a Chinese rocket with an Earth observation satellite. With no apparent planned launches for the rest of the year (according to my favorite Wikipedia page), that leaves the yearly totals as seen below, with Russia at 25 successful launches and China and the US tied at 18. If SpaceX had launched as many Falcon 9s as they had hoped this year, then the US may have matched or surpassed Russia’s numbers for the first time since probably 2003*. Comments from Musk at a recent press conference indicate he hopes for 12 launches in 2016. We will see.

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*The Proton is the rocket that seemed to blow up every other launch a couple of years ago. Although there has been only been one failure every year since 2012, the failure rate has remained about the same since 2010, with 4 out of 32 launches failed 2010 to 2012 and 3 out of 26 from 2013 to 2015.

**In 2003, Orbital Sciences was operating the Pegasus rocket (four launches), ILS was launching out of both Florida and Kazakhstan (I counted based on launch site) and Boeing and Lockheed had yet to merge as ULA. USA outscored Russia by 23 to 21 that year by  my count.

Around the Solar System

Here’s a cool new “self-portrait” panorama from the Curiosity rover on Mars.

Here are some new images from Dawn’s new low mapping orbit at Ceres.

December 29, 2015 8:31 am

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