A new study suggests Earth’s supply of oxygen developed thanks to the planet’s gradually slowing rotation creating longer days that allowed a certain form of algae to admit more oxygen as a byproduct of its metabolic process.The study, published Monday in the scientific journal Nature Geoscience, suggests that about 2.

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Study Suggests Earth's Slowing Rotation Led to More Oxygen in Atmosphere

SpaceX on Tuesday rolled out the rocket booster that the company plans to use to launch the first Starship orbital flight, and Elon Musk shared photos of the enormous vehicle.

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Elon Musk’s photos show SpaceX rolling out its massive rocket booster for Starship

A lunar magnetic field may not have just been short-lived; it may have persisted for only a blip in geologic time, a new study finds.Shortly after the moon formed about 4.5 billion years ago, it may have begun generating a magnetic field, a protective sheath that can deflect away charged particles from the sun (SN: 1/11/17). Now, analyses of moon rocks suggest that any lunar magnetic field was gone by at least 4 billion years ago, researchers re…

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A lunar magnetic field may have lasted for only a short time

The new CEO of Momentus hopes to turn the page on the company’s past regulatory problems and focus on development of its in-space propulsion technology it plans to demonstrate next year.SpaceNews

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Momentus looks ahead under new chief executive

The first all-civilian mission on a SpaceX Crew Dragon is getting the star treatment.

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Netflix will co-produce a documentary about SpaceX's Inspiration4 mission

Raytheon’s contract for the Global Positioning System Next Generation Operational Control System, known as OCX, is increasing by $13.5 million due to pandemic-related costs.SpaceNews

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COVID disruptions add $13.5 million to the cost of GPS ground control system

The National Reconnaissance Office has exercised a contract option to continue to procure satellite imagery from Maxar Technologies through August 2022.SpaceNews

National Reconnaissance Office exercises contract option for Maxar satellite imagery

New information has emerged about the Russian movie “The Challenge” planned to be filmed partly on the International Space Station in October. SpaceNews

New details of Russian “movie in space” emerge as producers seek funding

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