Video of SpaceX Falcon 1st stage landing attempt [Updated]

[Update] SpaceX engineers have examined the data and believe that sub-par performance of a throttle valve prevented a successful landing.  Per Elon Musk's tweet below, the next attempt will be in two months - which aligns with the CRS-7 mission (scheduled for June 19th).  This is consistent with previous announcements that the next landing attempts would be CRS-7 and CRS-8.

"Cause of hard rocket landing confirmed as due to slower than expected throttle valve response. Next attempt in 2 months." — Elon Musk (@elonmusk) April 18, 2015

SpaceX released this good quality video of the landing attempt to YouTube (watch on YouTube here). At first look I felt disappointment that it didn't stick the landing. That was replaced almost instantly by awe at that though that "this thing fell from the sky - not just the short distance on the video". Wow. As the rocket is just tipping over the "down hill" thruster (at the top of the stage) gives it's all to try to keep the the rocket vertical - but there's obviously too much inertia to overcome.


So, for an effort whose chances were estimated at 50/50, it was a brilliant achievement.

SpaceX still struggling to get CRS-3 launched

The latest resupply mission to the International Space Station (ISS) has been scrubbed again.  Scheduled to launch today, the SpaceX CRS-3 mission launch was scrubbed because of a  helium leak on the Falcon 9 rocket’s first stage.

The next opportunity will be Friday, April 18th at 3:25 pm EDT (although the weather is iffy).

The mission was originally slated for Q4 of 2013, with many dates slipping due to a packed launch schedule at the cape, coupled with a slip in the ISS berthing schedule due to multiple planned space walks to fix the December 2013 cooling issue on the station.  These not only impacted SpaceX's resupply mission, but Orbital's Cygnus resupply mission launch as well.  The schedule was then scheduled for no sooner than February 7, which was also pushed back to March 1 - and then March 16.  These schedule slips were followed by several unsuccessful attempts, including:

March 16th - launch was postponed after static firing of the engines due to “open items” that "require additional time to remedy".  Speculation included potential contamination in the cargo bay.

March 30 - launch was scrubbed when an Air Force tracking radar - part of a network that tracks launches - went off line impacting the public safety requirements for launching.

April 14 - launch as scrubbed due to a helium leak that is slated to be fixed in time for the April 18th launch window.

Look at this NASASpaceflight.com article for a really good write up of all of the events impacting the CRS-3 mission schedule.  Note that while these delays are bothersome, they are not unusual.

The mission itself is worth the wait and something I've been looking forward to for many months.

The main cargo resupply mission (CRS) mission objective continues to be the more routine job of getting cargo to and from the ISS - if anything as complex as a space mission can be called routine.  There will also be a secondary payload of five CubeSats under the ELaNa program.  ELaNa  is a NASA program to provide launch opportunities for educational CubeSat missions, and this will be the fifth launch under that program.

But what I'm really looking forward to is the second attempt at a soft splashdown to further SpaceX's long term goal of developing a reusable rocket.  A controlled descent of the Falcon 9 rocket was first tried on the maiden flight of the Falcon 9 version 1.1 from the Vandenberg Air Force Base.   The expectations for a successful controlled decent on that flight were very, very low.  And they are not very hight for CRS-3, but SpaceX will be taking every opportunity to test out their evolving capability, and the new Falcon 9 sports landing gear (as seen below) leading me to believe that every Falcon 9 flight going forward will include a controlled descent test.

The same landing gear has been spotted on a new test vehicle being called Grasshopper 2 but the press.  If you've been following the Grasshopper project you will know that it is a test of controlled decent, performed on land in Texas.  If you re not familiar with Grasshopper you can read this to catchup (and see some great videos).  This new Grasshopper 2 test vehicle has landing gear that seems identical to the gear attached to the new Falcon 9 rocket.  This clearly indicates that SpaceX is going full speed ahead in developing it's reusable rocket capability - which could be a game changer in terms of launch costs.

Below is a picture of the new Grasshopper 2 test vehicle with the new landing gear.  The inset on the left shows the landing gear on the original Grasshopper.  Photo courtesy of this Redit post.

It is not clear if this gear is retractable like the gear on the Falcon 9.

SpaceX launches new rocket from a new launch facility

SpaceX successfully launched its new 1.1 version of the Falcon 9 rocket yesterday under a beautiful blue California sky.

The 1.1 version of the rocket is longer (for more fuel) and features the new, more powerful, Merlin 1D engines.  It also flew with a larger cargo faring that provides both more protection and more cargo volume.  There are other minor differences in the 1.1 version as well, such as updated flight avionics, and the rearrangement of the booster's engines in a circular arrangement as opposed to the 3x3 grid of the previous rocket.

This is also the first launch from the new Vandenberg Air Force Base launch site.  This is the site that should soon see the first test of the Falcon Heavy rocket.  While I haven't heard much about the Falcon Heavy lately - its still on the launch manifest for 2014.  Additionally, the Vandenberg site provided the chance to try a controlled decent of the booster - an important capability that the Grasshopper project is working towards.  The first part of the controlled decent went well, but the second burn put the booster into a spin, so controlled decent didn't happen - but it really wasn't expected to.  Since this launch provided an opportunity give it a try, an attempt couldn't be passed up, and I'm sure it yielded valuable data.  The next two launches will not afford another attempt as they will require all of the rocket's available fuel to get its payloads into geosynchronous orbit.  So, although SpaceX is still firmly committed to booster reusability, full flight testing will have to wait a while.

And those next launches will be another first for SpaceX, as all of its launches to date have been to LEO (low earth orbit).  In case you aren't intimately familiar with the different Earth orbits, Low Earth Orbit (LEO) is generally between 160 kilometers (99 mi) and 2,000 kilometers (1,200 miles).  Geosynchronous orbit however is approximately 35,786 km (22,236 mi) -  nearly 20 times higher!

Additionally, after deploying the payload, an attempt to reignite the second stage Merlin 1D in order to demonstrate its ability to restart in space, was unsuccessful.  During the restart the engine detected a problem and aborted the burn.

But the primary missions of demonstrating the Falcon 9 v1.1 rocket, and of placing its six payloads into stable orbit were complete successes.  The primary payload was the Cascade Smallsat and Ionospheric Polar Explorer (CASSIOPE) satellite.  The secondary payloads included the Polar Orbiting Passive Atmospheric Calibration Spheres (POPACS) CubeSat, the Drag & Atmospheric Neutral Density Explorer (DANDE) spherical spacecraft, and the CUSat technology demonstrator satellite.

Read more about these payloads, and all of the mission's details in the press kit, and be sure to check out these hi-res photos and videos.

A big hop for SpaceX's Grasshopper

On March 7th, the SpaceX Grasshopper doubled its previous best height.  Reaching 262.8 feet (80.1m), hovering for several seconds, and descending gently to the ground - all with perfect looking control.  Starting from a mere 6ft hop, Grasshopper has been steadily increasing the size of its hops as shown here and here.  The goal of Grasshopper is to provide the research that will lead to a reusable launch platform.  Such a platform will be able to launch payloads into orbit, autonomously land, and then be refitted and relaunched.  This will significantly reduce cost and turn around time.

Check out the video.  Its a little hard to tell the scale of this rocket, but it's 10 stories tall and quite heavy - which makes this a pretty impressive feat.

Another hop for SpaceX's Grasshopper

As I wrote in early November, the SpaceX Grasshopper project will be making increasing longer "hops" as the company works through the process of developing "full and rapid rocket reusability".  The goal being to maximize reuse - in order to lower costs - and to do so in a manner that will allow the rocket to be rapidly readied for subsequent flights.
The rocket will utilize vertical takeoff and landing vehicle (VTVL) capabilities that rely on sophisticated closed loop thrust vector and throttle control systems.  The most recent test, conducted on December 17th, lasted 29 seconds with the rocket rising 131 feet (40 meters) - equivalent to 12 stories - before hovering and landing safely on the pad.  Quite a feat considering the rocket itself is 10 stories tall.  The video is below, and the press release is on SpaceX's update site.