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Category: space – Page 721

NASA Selects Partner to Land Water-Measuring Payload on the Moon

NASA has awarded Intuitive Machines of Houston approximately $47 million to deliver a drill combined with a mass spectrometer to the Moon by December 2022 under the agency’s Commercial Lunar Payload Services initiative. The delivery of the Polar Resources Ice Mining Experiment known as PRIME-1 will help NASA search for ice at the Moon’s South Pole and, for the first time, harvest ice from below the surface.

“We continue to rapidly select vendors from our pool of CLPS vendors to land payloads on the lunar surface, which exemplifies our work to integrate the ingenuity of commercial industry into our efforts at the Moon,” said NASA’s Associate Administrator for Science Thomas Zurbuchen. “The information we’ll gain from PRIME-1 and other science instruments and technology demonstrations we’re sending to the lunar surface will inform our Artemis missions with astronauts and help us better understand how we can build a sustainable lunar presence.”

PRIME-1 will land on the Moon and drill up to 3 feet (approximately 1 meter) below the surface. It will measure with a mass spectrometer how much ice in the sample is lost to sublimation as the ice turns from a solid to a vapor in the vacuum of the lunar environment. Versions of PRIME-1’s drill and the Mass Spectrometer Observing Lunar Operations, or MSolo, will also fly on VIPER, a mobile robot that also will search for ice at the lunar South Pole in 2023. NASA will land the first woman and next man on the Moon’s South Pole the following year.

NASA makes a significant investment in on-orbit spacecraft refueling

NASA has reached an agreement with 14 US companies to develop technologies that will enable future modes of exploration in space and on the surface of the Moon. NASA says the value of these awards for “Tipping Point” technologies is more than $370 million.

With these awards, the space agency is leaning heavily into technologies related to the collection, storage, and transfer of cryogenic propellants in space. Four of the awards, totaling more than $250 million, will go to companies specifically for “cryogenic fluid management” tech demonstrations:

Eta Space of Merritt Island, Florida, $27 million. Small-scale flight demonstration of a complete cryogenic oxygen fluid management system. System will be the primary payload on a Rocket Lab Photon satellite and collect critical cryogenic fluid management data in orbit for nine months. Lockheed Martin of Littleton, Colorado, $89.7 million. In-space demonstration mission using liquid hydrogen to test more than a dozen cryogenic fluid management technologies, positioning them for infusion into future space systems. SpaceX of Hawthorne, California, $53.2 million. Large-scale flight demonstration to transfer 10 metric tons of cryogenic propellant, specifically liquid oxygen, between tanks on a Starship vehicle. United Launch Alliance (ULA) of Centennial, Colorado, $86.2 million. Demonstration of a smart propulsion cryogenic system, using liquid oxygen and hydrogen, on a Vulcan Centaur upper stage. The system will test precise tank-pressure control, tank-to-tank transfer, and multiweek propellant storage.

Orionid meteor shower to peak soon, best times to see it

This fall sky show has some really bright meteors this year.

Two full moons with a meteor shower sandwiched in between? October has been a fun month for sky watchers.

The annual Orionid meteor shower is already heating up. It generally lasts from early October through about Nov. 7. This year, it’s expected to reach its peak before dawn on Oct. 21.

But don’t wait until then to start watching for meteors streaking across the sky.

Intercontinental comparison of optical atomic clocks through very long baseline interferometry

The comparison of distant atomic clocks is foundational to international timekeeping, global positioning and tests of fundamental physics. Optica l-fibre links allow the most precise optical clocks to be compared, without degradation, over intracontinental distances up to thousands of kilometres, but intercontinental comparisons remain limited by the performance of satellite transfer techniques. Here we show that very long baseline interferometry (VLBI), although originally developed for radio astronomy and geodesy, can overcome this limit and compare remote clocks through the observation of extragalactic radio sources. We developed dedicated transportable VLBI stations that use broadband detection and demonstrate the comparison of two optical clocks located in Italy and Japan separated by 9,000 km. This system demonstrates performance beyond satellite techniques and can pave the way for future long-term stable international clock comparisons.

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