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SpaceX delays launch of Starlink, BlackSky satellites again due to rocket checks – Space.com

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CAPE CANAVERAL, Fla. — SpaceX postponed the latest launch of a new Starlink satellite fleet again Saturday (July 11) citing the need for more checks of the mission’s Falcon 9 rocket. 

The California-based rocket builder planned to launch 57 Starlink satellites andtwo BlackSky Global Earth-observing satellites from Florida at 10:54 a.m. EDT (1454 GMT) Saturday as part of a rideshare mission. But just over an hour before liftoff, SpaceX announced via Twitter that it was standing down. A new launch date and time still needs to be confirmed with the Eastern Range, the entity that oversees all launches along the East Coast. 

“Standing down from today’s launch of the tenth Starlink mission to allow time for more checkouts; team is working to identify the next launch opportunity. Will announce a new target launch date once confirmed with the Range,” SpaceX wrote on Twitter.

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Related: SpaceX’s Starlink satellite megaconstellation launches in photos

The mission stars a veteran Falcon 9, with four flights under its belt. Dubbed B1051 by SpaceX, the booster was scheduled to make its fifth trip to space after launching two Starlink flights earlier this year as well as SpaceX’s first Crew Dragon test flight and a trio of Earth-observing satellites for Canada in 2019. 

Along with a stack of 57 internet-beaming satellites, SpaceX is ferrying two small, Earth-observing satellites for BlackSky Global as part of a rideshare deal arranged bySpaceflight — a brokerage service that helps small satellites find rides to space. 

https://twitter.com/spacex/status/1281942134736617472?s=21

Today’s delay is the third for this mission, as the rocket was originally slated to hoist the Starlink/BlackSky payload on June 26. The company also chose to postpone its first attempt in order to conduct more preflight checks. A second delay on July 8 was caused by weather. 

Forecasters at the U.S. Space Force’s 45th Space Wing weather squadron predicted a 60% chance of favorable weather conditions going into today’s launch attempt. Officials cited thick clouds and the potential for triggered lightning being the reason for a possibledelay. 

Depending on when SpaceX reschedules this launch, the company could have back-to-back launches next week as it  is already preparing for anotherlaunch. In that mission, which is expected to launch for no earlier than Tuesday (July 14), SpaceX is preparing to launch the Anasis 2 communications satellite for South Korea. 

The 45th Space Wing and the Eastern Range can support a 24-hour turnaround between launches if necessary. It all depends on what sort of Falcon 9 checkouts the company needs to perform and when they can reschedule the launch. 

When it does get off the ground, the Starlink/BlackSky mission will mark the tenth Starlink mission to date for SpaceX as well as the eighth Starlink mission of 2020. It is SpaceX’s eleventh mission of the year. 

Follow Amy Thompson on Twitter @astrogingersnap. Follow us on Twitter @Spacedotcom or Facebook.

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SpaceX sends 23 Starlink satellites into low-Earth orbit

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April 23 (UPI) — SpaceX launched 23 Starlink satellites into low-Earth orbit Tuesday evening from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.

Liftoff occurred at 6:17 EDT with a SpaceX Falcon 9 rocket sending the payload of 23 Starlink satellites into orbit.

The Falcon 9 rocket’s first-stage booster landed on an autonomous drone ship in the Atlantic Ocean after separating from the rocket’s second stage and its payload.

The entire mission was scheduled to take about an hour and 5 minutes to complete from launch to satellite deployment.

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The mission was the ninth flight for the first-stage booster that previously completed five Starlink satellite-deployment missions and three other missions.

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NASA Celebrates As 1977’s Voyager 1 Phones Home At Last

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Voyager 1 has finally returned usable data to NASA from outside the solar system after five months offline.

Launched in 1977 and now in its 46th year, the probe has been suffering from communication issues since November 14. The same thing also happened in 2022. However, this week, NASA said that engineers were finally able to get usable data about the health and status of its onboard engineering systems.

Slow Work

Fixing Voyager 1 has been slow work. It’s currently over 15 billion miles (24 billion kilometers) from Earth, which means a radio message takes about 22.5 hours to reach it—and the same again to receive an answer.

The problem appears to have been its flight data subsystem, one of one of the spacecraft’s three onboard computers. Its job is to package the science and engineering data before it’s sent to Earth. Since the computer chip that stores its memory and some of its code is broken, engineers had to re-insert that code into a new location.

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Next up for engineers at NASA’s Jet Propulsion Laboratory in California is to adjust other parts of the FDS software so Voyager 1 can return to sending science data.

Beyond The ‘Heliopause’

The longest-running and most distant spacecraft in history, Voyager 1, was launched on September 5, 1977, while its twin spacecraft, Voyager 2, was launched a little earlier on August 20, 1977. Voyager 2—now 12 billion miles away and traveling more slowly—continues to operate normally.

Both are now beyond what astronomers call the heliopause—a protective bubble of particles and magnetic fields created by the sun, which is thought to represent the sun’s farthest influence. Voyager 1 got to the heliopause in 2012 and Voyager 2 in 2018.

Pale Blue Dot

Since their launch from Cape Canaveral, Florida, aboard Titan-Centaur rockets, Voyager 1 and Voyager 2 have had glittering careers. Both photographed Jupiter and Saturn in 1979 and 1980 before going their separate ways. Voyager 1 could have visited Pluto, but that was sacrificed so scientists could get images of Saturn’s moon, Titan, a maneuver that made it impossible for it to reach any other body in the solar system. Meanwhile, Voyager 2 took slingshots around the planets to also image Uranus in 1986 and Neptune in 1989—the only spacecraft ever to image the two outer planets.

On February 14, 1990, when 3.7 billion miles from Earth, Voyager 1 turned its cameras back towards the sun and took an image that included our planet as “a mote of dust suspended in a sunbeam.” Known as the “Pale Blue Dot,” it’s one of the most famous photos ever taken. It was remastered in 2019.

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NASA hears from Voyager 1, the most distant spacecraft from Earth, after months of quiet

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CAPE CANAVERAL, Fla. (AP) – NASA has finally heard back from Voyager 1 again in a way that makes sense.

The most distant spacecraft from Earth stopped sending back understandable data last November. Flight controllers traced the blank communication to a bad computer chip and rearranged the spacecraft’s coding to work around the trouble.

NASA’s Jet Propulsion Laboratory in Southern California declared success after receiving good engineering updates late last week. The team is still working to restore transmission of the science data.

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It takes 22 1/2 hours to send a signal to Voyager 1, more than 15 billion miles (24 billion kilometers) away in interstellar space. The signal travel time is double that for a round trip.

Contact was never lost, rather it was like making a phone call where you can’t hear the person on the other end, a JPL spokeswoman said Tuesday.

Launched in 1977 to study Jupiter and Saturn, Voyager 1 has been exploring interstellar space – the space between star systems – since 2012. Its twin, Voyager 2, is 12.6 billion miles (20 billion kilometers) away and still working fine.

 

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