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SpaceX ready for Falcon 9 launch with next Starlink mission – NASASpaceflight.com

SpaceX will continue the deployment of its Starlink constellation with the launch of another sixty…

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SpaceX will continue the deployment of its Starlink constellation with the launch of another sixty satellites aboard a Falcon 9 rocket on Sunday. Liftoff from Florida’s Kennedy Space Centre is expected at 08:27 Eastern Time (12:27 UTC).
Sunday’s launch is the thirteenth Falcon 9 mission to deploy operational Starlink satellites, designated Starlink v1.0 L13. This continues the first phase of Starlink deployment, which is aimed at setting up an initial operating capability and allowing SpaceX to…

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For the first time, a Starship prototype roars to life with three engines – Ars Technica

SpaceX now likely to fully assemble spaceship for a 15km test flight.

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As part of the Starship program, SpaceX began experimenting with earlier prototypes in late 2019 and early 2020, losing three vehicles during various proof tests. In May, the company successfully tested a full scale tank section of its Starship vehicle (SN4) for the first time with a single Raptor engine. It was later lost due to a ground-systems issue.
Then, in August, and again in September, it flew two different vehiclesSN5 and SN6on short hops to 150 meters. These vehicles looked something …

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The Closest Black Hole to Earth May Not Actually Be a Black Hole After All – ScienceAlert

An object identified earlier this year as the closest black hole we’ve ever discovered may have just been demoted. After reanalysing the data, separate teams of…

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An object identified earlier this year as the closest black hole we’ve ever discovered may have just been demoted. After reanalysing the data, separate teams of scientists have concluded that the system in question, named HR 6819, does not include a black hole after all.
Instead, they have found that it’s likely just two stars with a slightly unusual binary orbit that makes it difficult to interpret.
HR 6819, located around 1,120 light-years away, has been a bit of a puzzle for some time. Init…

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Driver Identified of the Largest Mass Extinction in the History of the Earth – SciTechDaily

New study provides a comprehensive reconstruction of the Permian-Triassic boundary event. Life on Earth has a long, but also an extremely turbulent history. On …

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Sessile filter feeders like this Carboniferous crinoid, the mushroom crinoid (Agaricocrinus americanus), were significantly less abundant after the Permian-Triassic extinction. Credit: Vassil – Alias Collections, CC BY-SA 3.0
New study provides a comprehensive reconstruction of the Permian-Triassic boundary event.
Life on Earth has a long, but also an extremely turbulent history. On more than one occasion, the majority of all species became extinct and an already highly developed biodiversity …

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