Aerospace

There are several schools of thought on building a CubeSat or other picosatellite.  We will contrast what we call Lego-style with what we'll dub the Custom Shop approach.

Lego Style suggests using the easiest, rather than the most efficient, parts and tools to create your satellite.  This is the kit-bashing or Lego bricks approach.  You have several generic pieces, and you put them together to make what you want.  The final end product may be a bit square and clunky, but the advantage is that you were able to quickly build and test.
NASA's Inflatable Reentry Vehicle Experiment (IRVE-3), a large inflatable heat shield developed, was launched by sounding rocket at 7:01 a.m. Monday from NASA's Wallops Flight Facility on Wallops Island, Va.  It successfully survived a trip through Earth's atmosphere while traveling at hypersonic speeds of 7,600 mph.
The Very Large Array (VLA) radio astronomy observatory, named for American physicist Karl Guthe Jansky, who discovered radio waves emanating from the Milky Way in 1931, is the largest and most capable radio telescope in the world
On July 11, NASA scientists will launch into space the highest resolution solar telescope ever to observe the solar corona, the million degree outer solar atmosphere.

But it will only last 10 minutes. 
If you use off-the-shelf electronics parts instead of expensive, hard-to-find space-rated gear, will your satellite work?  The process of 'derating' will let you do this.  Engineer Amanda Shields contributes today's guest column.

I'm becoming very familiar with derating and the joys of it.   Electrical components for spacecraft have to be derated. Basically, that means that you take the electrical component and you look at the data sheet for that piece and you have to say "Well, according to the datasheet it can have a maximum input power of XX, but NASA says that it has to be derated to 80% of that, so we can actually only have an input power of YY".
NASA's Voyager 1, launched in 1977, was propelled into deep space with the help of Jupiter's and Saturn's gravity. Now it is about to leave the solar system. But exactly when is unclear.

Voyager 1 is traveling at a speed of about 3.6 Astronomical Units (AU) per year - one 'AU' equals the distance between the Sun and the Earth, or 93 million miles.
A Mojave rocket company, an asteroid hunter, and a web pundit walk into a conference.  The badge person says, "what is this some kind of joke?"

Okay, we gotta get to space somehow.  Here's what's new in the private space race industry.  What ties these 4 newsbits together is it's all about having fun.

SatMagazine (March 2012) reports
Think it takes James Webb Space Telescope money-pit type funding to do (or someday do) astronomy these days?

Not so, some astronomers get it done with a lens equivalent to a digital camera. As the saying goes, it's not the size of your aperture, it's the vigor of your numerical analysis that counts.

The KELT North telescope in southern Arizona has a tiny lens - really tiny.  But it has revealed the existence of two very unusual faraway planets in a big way, according to Ohio State University doctoral student Thomas Beatty and Vanderbilt University research scientist Robert Siverd, who detailed their discoveries for the KELT-North team at the American Astronomical Society national meeting in Anchorage.
The winner picture of the Venus transit must be the one below, whose original version can be found here. Thanks Bente Lilya Bye for posting the link on her Facebook page!



The picture was taken by Hinode, a joint JAXA-NASA mission to study the Sun's magnetism in and around sunspots.
Tuesday, June 5th, 2012 at 3:03 PM PDT (California), Venus will do something we on Earth will have witnessed for only the eighth since the invention of the telescope - it will cross in front of the sun. This transit is among the rarest of planetary alignments and it has an interesting cycle. Two Venus transits always occur within eight years of each other and then there is a break of either 105 or 121 years before it happens again.