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Archive for the ‘satellites’ category: Page 34

Aug 21, 2023

Space Development Agency awards contracts to Lockheed Martin, Northrop Grumman for 72 satellites

Posted by in categories: military, satellites

WASHINGTON — The Space Development Agency announced Aug. 21 it awarded contracts worth $1.5 billion to Northrop Grumman and Lockheed Martin to build and operate 72 satellites.

The Space Development Agency (SDA), an organization under the U.S. Space Force, is building a mesh network of military satellites in low Earth orbit.

The 72 satellites will make up a portion of SDA’s network known as Tranche 2 Transport Layer. SDA is building a large constellation called the proliferated warfighter space architecture that includes a Transport Layer of interconnected communications satellites and a Tracking Layer of missile-detection and warning sensor satellites.

Aug 20, 2023

Chinese firm launches satellite with AI-powered ‘brain’

Posted by in categories: robotics/AI, satellites

The satellite’s developer says it has an onboard intelligent processing unit that allows it process data without sending it back to ground controlThe company hopes it could one day be used to monitor environmental conditions or support emergency relief efforts.

A Chinese company has launched a satellite that has powerful artificial intelligence at its core, with the final aim of creating a self-controlled spaceship.

The WonderJourney-1A, or WJ-1A, which blasted off from the Jiuquan Satellite Launch Centre in Inner Mongolia earlier this month, has an onboard intelligent processing unit known as the String Edge AI Platform.

Aug 20, 2023

Global Quantum Communication via a Satellite Train

Posted by in categories: quantum physics, satellites

Long-distance quantum communication can be achieved by directly sending light through space using a train of orbiting satellites that function as optical lenses.

Aug 16, 2023

Rocket Lab to launch pair of NASA Earth science cubesats

Posted by in categories: energy, satellites, science

WASHINGTON — NASA selected Rocket Lab to launch a pair of cubesats in 2024 to monitor energy entering and exiting the polar regions of the planet.

NASA announced Aug. 14 it awarded a task order through its Venture-class Acquisition of Dedicated and Rideshare (VADR) contract to Rocket Lab for the launch of two 6U cubesats for the Polar Radiant Energy in the Far-InfraRed Experiment, or PREFIRE mission.

The NASA announcement did not disclose the value of the task order. The agency stated in past awards done under VADR that the pricing is considered “proprietary” because the awards are competed in a closed environment, with only companies on the VADR contract eligible to bid on launches of taxpayer-funded missions.

Aug 15, 2023

The Space Force Is Launching Its Own Swarm of Tiny Satellites

Posted by in categories: military, satellites

Defense satellites used to be big, costly, and “juicy” targets for attack. Now the Pentagon is aiming for a more resilient network of nearly 1,000 mini orbiters.

Aug 12, 2023

It looked like a bizarre alignment of meteors. It was something else

Posted by in categories: internet, satellites

Astronomers are calling arrays of thousands of satellites, like that of Starlink’s, “mega constellations” because of their overwhelming presence in the night sky.

Aug 10, 2023

Saturn-sized exoplanet discovered with TESS

Posted by in category: satellites

Using NASA’s Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new giant exoplanet transiting a nearby M-dwarf star. The newfound alien world, designated TOI-4860 b, is comparable in size and mass to Saturn. The finding is reported in a paper published August 2 on the pre-print server arXiv.

TESS is conducting a survey of about 200,000 of the brightest stars near the sun with the aim of searching for transiting exoplanets. So far, it has identified over 6,700 candidate exoplanets (TESS Objects of Interest, or TOI), of which 373 have been confirmed so far.

Now, a group of astronomers led by Jose Manuel Almenara of the Grenoble Alpes University in France, reports the confirmation of another TOI monitored by TESS. They identified a transit signal in the light curve of an M-dwarf star known as TOI-4860. The planetary nature of this signal was confirmed by ground-based follow-up photometric observations.

Aug 9, 2023

Amazon’s Project Kuiper satellites will fly on the new Vulcan Centaur rocket in early 2023

Posted by in categories: Elon Musk, internet, satellites

Jeff Bezos’ e-commerce giant is set to rival Elon Musk’s Starlink service with its 3,200-internet satellite mega-constellation.

Amazon has announced it will now deploy its two Project Kuiper prototype satellites aboard a United Launch Alliance (ULA) Atlas V rocket this fall.

Continue reading “Amazon’s Project Kuiper satellites will fly on the new Vulcan Centaur rocket in early 2023” »

Aug 8, 2023

Superconductor LK99 Update

Posted by in categories: energy, internet, satellites

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Today I have an update on the reproduction efforts for the supposed room temperature superconductor, LK 99, the first images from the Euclid mission, more trouble with Starlink satellites, first results from a new simulation for cosmological structure formation, how to steer drops with ultrasound, bacteria that make plastic, an improvement for wireless power transfer, better earthquake warnings, an attempt to predict war, and of course the telephone will ring.

Continue reading “Superconductor LK99 Update” »

Aug 5, 2023

SpaceX’s private control of satellite internet concerns military leaders: report

Posted by in categories: Elon Musk, internet, military, satellites

A number of military leaders around the world have expressed concerns to US officials over the dominance and control of SpaceX founder Elon Musk over satellite internet, according to a new report.

Over the past decade Musk’s SpaceX has changed the launch industry with its reusable Falcon 9 rocket. The company has pressed this advantage to establish itself as the leading player in satellite internet through Starlink.

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