Bill Nye (the Educational Guy) Wrote an Open Letter to the Trump Administration About NASA
March 10, 2017
SpaceX Falcon-9 performed prelaunch test to send on orbit EchoStar23 satellite early
Tuesday, March 14, 2017
SpaceX has suspended its practice of conducting some static fire tests with the mission’s satellite payloads already on-board the booster since a rocket exploded during fueling for a hot fire last September, destroying the launcher and the Israeli-owned Amos 6 communications satellite.
Investigators traced the explosion to a problem in the second stage’s helium pressurization system, and SpaceX says it has modified the way it loads helium and propellant into the rocket to avoid a recurrence of the issue. Hardware changes to permanently rectify the problem will come later, the company said.
SpaceX has not ruled out resuming static fire tests of fully-assembled rockets in the future, which would save one or two days in each launch campaign.
Still, the test is a customary step in SpaceX launch campaigns, offering a chance to wring out any kinks in the Falcon 9 rocket and ground systems, practice countdown procedures for the launch team, and verify the readiness of the booster’s main propulsion system.
The rocket will now be returned to the hangar at pad 39A for attachment of the EchoStar 23 spacecraft, a commercial television broadcast satellite that will beam video programming to homes and businesses in Brazil.
Liftoff is scheduled for a two-and-a-half hour window opening at 1:34 a.m. EDT (0534 GMT) Tuesday.
Attempts to perform the hotfire test Tuesday and Wednesday were scrubbed for unknown reasons. SpaceX declined to comment on launch preparations in advance of the static fire, but the delays forced a two-day slip in the mission’s targeted launch date from Sunday to Tuesday.
The company confirmed in a tweet Thursday evening that the static fire was completed. Engineers will crunch data from the hotfire to verify all systems functioned as intended, then convene a launch readiness review in advance of the final countdown, which will commence Monday night.
EchoStar 23 is already encapsulated inside the Falcon 9 rocket’s payload fairing after fueling inside a clean room at neighboring Cape Canaveral Air Force Station. The composite will be installed on the rocket once the Falcon 9 is lowered and rolled back inside SpaceX’s hangar.
Built by Space Systems/Loral in Palo Alto, California, EchoStar 23 will be deployed into geostationary transfer orbit, an elliptical loop around Earth favored as a drop-off point for communications satellites heading for operating posts more than 22,000 miles (nearly 36,000 kilometers) over the equator.
At that altitude, a spacecraft in orbit will move around Earth at the same speed the planet rotates, allowing the satellite to remain fixed over the same location.
EchoStar 23 will use its own thrusters to reach a position in geostationary orbit at 45 degrees west longitude, where its telecom package will broadcast direct-to-home television to customers in Brazil.
Elon Musk said that they are ready to launch Falcon-9 ISS
resupply mission February 18. I just don't know if they are going to
use Falcon-9 refurbish first stage...
SpaceX Falcon-9 test-fired in Texas
SpaceX "Prepping to fly again recovered CRS-8 first stage"
Why SpaceX (Elon Musk) has to avoid Falcon-9 prelaunch
Procedure filing with cryogenic fuel and firing the engines?
SpaceX Falcon-9 launches Iridium-1 NEXT satellite. Landing Falcon-9 on barge SpaceX News
SpaceX has changed the schedule of the Iridium NEXT satellite launch again to January 14
NASA has ordered astronaut flights from
SpaceX and Boeing
SpaceX has changed the schedule of the Iridium NEXT satellite launch to January 9.
SpaceX is now ready to get back into the business
Watch Elon Musk reacts on first successful Falcon-9
Landing on Launch Pad
Click on the picture to see video CRS-9 SpaceX’s Falcon 9 rocket Successful Mission and Landing at Cape Canaveral, Fl whit Elon Musk and his team reaction. Thanks to National Geographic for this footage.
December 12, 2017
Elon Musk delays crewed flight of its SpaceX Dragon capsule for NASA
Actually it was predictable. The way SpaceX configured the use of Liquid Helium composite vessels and procedure of filling spacecraft with liquid oxygen were (are) the recipe for the disaster. I have 38 years of experience working with cryogenic liquids and vessels. Watching oxygen vapors covers all over the craft even during flight was painful. When Elon Musk asked for help per Twitter, I had sent them proposal to help company connecting both second stage explosions to the same problem. They have ignored it. Looks like SpaceX became regular big and ignorant monster company. Too pity.
September 1, 2016 Latest update on SpaceX Falcon-9 explosion
Please don't be fooled by thousands of "new" articles and videos that speculating explosion of the Falcon-9 on the launching Pad.
Below is the SpaceX updates "as it was". Please pay attention that no one knows more than in this SpaceX article - no one and nobody! Below is updates directly from SpaceX website:
Below are updates regarding the anomaly that occurred in preparation for the AMOS-6 mission:
September 2, 6:45pm EDT
SpaceX has begun the careful and deliberate process of understanding the causes and fixes for yesterday's incident. We will continue to provide regular updates on our progress and findings, to the fullest extent we can share publicly.
We deeply regret the loss of AMOS-6, and safely and reliably returning to flight to meet the demands of our customers is our chief priority. SpaceX's business is robust, with approximately 70 missions on our manifest worth over $10 billion. In the aftermath of yesterday's events, we are grateful for the continued support and unwavering confidence that our commercial customers as well as NASA and the United States Air Force have placed in us.
Overview of the incident:
- Yesterday, at SpaceX's Launch Complex 40 at Cape Canaveral Air Force Station, an anomaly took place about eight minutes in advance of a scheduled test firing of a Falcon 9 rocket.
- The anomaly on the pad resulted in the loss of the vehicle.
- This was part of a standard pre-launch static fire to demonstrate the health of the vehicle prior to an eventual launch.
- At the time of the loss, the launch vehicle was vertical and in the process of being fueled for the test. At this time, the data indicates the anomaly originated around the upper stage liquid oxygen tank. Per standard operating procedure, all personnel were clear of the pad. There were no injuries.
To identify the root cause of the anomaly, SpaceX began its investigation immediately after the loss, consistent with accident investigation plans prepared for such a contingency. These plans include the preservation of all possible evidence and the assembly of an Accident Investigation Team, with oversight by the Federal Aviation Administration and participation by NASA, the United States Air Force and other industry experts. We are currently in the early process of reviewing approximately 3000 channels of telemetry and video data covering a time period of just 35-55 milliseconds.
As for the Launch Pad itself, our teams are now investigating the status of SLC-40. The pad clearly incurred damage, but the scope has yet to be fully determined. We will share more data as it becomes available. SpaceX currently operates 3 launch pads – 2 in Florida and 1 in California at Vandenberg Air Force Base. SpaceX's other launch sites were not affected by yesterday's events. Space Launch Complex 4E at Vandenberg Air Force Base is in the final stages of an operational upgrade and Launch Complex 39A at Kennedy Space Center remains on schedule to be operational in November. Both pads are capable of supporting Falcon 9 and Falcon Heavy launches. We are confident the two launch pads can support our return to flight and fulfill our upcoming manifest needs.
Again, our number one priority is to safely and reliably return to flight for our customers, as well as to take all the necessary steps to ensure the highest possible levels of safety for future crewed missions with the Falcon 9. We will carefully and thoroughly investigate and address this issue.
September 2, 9:00am EDT
Statement from SpaceX President and COO, Gwynne Shotwell:
“We deeply regret the loss of Amos-6. Our number one priority is to safely and reliably return to flight for our customers, and we will carefully investigate and address this issue. We are grateful for the continued support that our customers have expressed to us.”
September 1, 1:28pm EDT
At approximately 9:07 am ET, during a standard pre-launch static fire test for the AMOS-6 mission, there was an anomaly at SpaceX’s Cape Canaveral Space Launch Complex 40 resulting in loss of the vehicle.
The anomaly originated around the upper stage oxygen tank and occurred during propellant loading of the vehicle. Per standard operating procedure, all personnel were clear of the pad and there were no injuries.
We are continuing to review the data to identify the root cause. Additional updates will be provided as they become available.
September 1, 10:22am EDT
SpaceX can confirm that in preparation for today's static fire, there was an anomaly on the pad resulting in the loss of the vehicle and its payload. Per standard procedure, the pad was clear and there were no injuries.
September 1, 2016
Explosion of SpaceX Falcon-9 during prelaunch test
Do not be fooled, that the road to the space exploration is lined up with asphalt and with roses and tulips on the sidelines. SpaceX Falcon-9 explosion together with payload of Israeli 6 satellites is a very proof of it.
Moment of explosion video
Video slideshow with comments below
Falcon-9 was set to launch on Saturday September 3 delivering Amos-6 communication satellite, which among other functions included the capabilities for Facebook to spot-beam broadband for Facebook’s Internet.org initiative.