Archive for the ‘satellites’ category

Nov 21, 2023

A nanosatellite and a hot air balloon for emergency broadband anywhere

Posted by in categories: computing, internet, satellites, security

It is estimated that 95% of the planet’s population has access to broadband internet, via cable or a mobile network. However, there are still some places and situations in which staying connected can be very difficult. Quick responses are necessary in emergency situations, such as after an earthquake or during a conflict. So too are reliable telecommunications networks that are not susceptible to outages and damage to infrastructure, networks can be used to share data that is vital for people’s well-being.

A recent article, published in the journal Aerospace, proposes the use of nanosatellites to provide comprehensive and stable coverage in areas that are hard to reach using long-range communications. It is based on the bachelor’s and master’s degree final projects of Universitat Oberta de Catalunya (UOC) graduate David N. Barraca Ibort.

The paper is co-authored by Raúl Parada, a researcher at the Telecommunications Technological Center of Catalonia (CTTC/CERCA) and a course instructor with the UOC’s Faculty of Computer Science, Multimedia and Telecommunications; Carlos Monzo, a researcher and member of the same faculty; and Víctor Monzón, a researcher at the Interdisciplinary Center for Security Reliability and Trust at the University of Luxembourg.

Nov 20, 2023

Revolutionizing Satellite Security: NASA’s Groundbreaking Project To Integrate AI, Blockchain, & Nanosatellites

Posted by in categories: blockchains, economics, internet, robotics/AI, satellites, security

As part of pioneering the security of satellite communication in space, NASA is funding a groundbreaking project at the University of Miami’s Frost Institute for Data Science and Computing (IDSC) which will enable augmenting traditional large satellites with nanosatellites or constellations of nanosatellites.

These nanosatellites are designed to accomplish diverse goals, ranging from communication and weather prediction to Earth science research and observational data gathering. Technical innovation is a hallmark of NASA, a global leader in the development of novel technologies that enable US space missions and translate to a wide variety of applications from Space and Earth science to consumer goods and to national and homeland security.

With advances in satellite technology and reduced cost of deployment and operation, nanosatellites also come with significant challenges for the protection of their communication networks. Specifically, small satellites are owned and operated by a wide variety of public and private sector organizations, expanding the attack surface for cyber exploitation. The scenario is similar to Wi-Fi network vulnerabilities. These systems provide an opportunity for adversaries to threaten national security as well as raise economic concerns for satellite companies, operators, and users.

Nov 20, 2023

The Importance of the Earth’s Atmosphere in Creating the Large storms that Affect Satellite Communications

Posted by in categories: particle physics, satellites

A study from an international team led by researchers from Nagoya University in Japan and the University of New Hampshire in the United States has revealed the importance of the Earth’s upper atmosphere in determining how large geomagnetic storms develop. Their findings reveal the previously underestimated importance of the Earth’s atmosphere. Understanding the factors that cause geomagnetic storms is important because they can have a direct impact on the Earth’s magnetic field such as causing unwanted currents in the power grid and disrupting radio signals and GPS. This research may help predict the storms that will have the greatest consequences.

Scientists have long known that geomagnetic storms are associated with the activities of the Sun. Hot charged particles make up the Sun’s outer layer, the one visible to us. These particles flow out of the Sun creating the ‘solar wind’, and interact with objects in space, such as the Earth. When the particles reach the magnetic field surrounding our planet, known as the magnetosphere, they interact with it. The interactions between the charged particles and magnetic fields lead to space weather, the conditions in space that can affect the Earth and technological systems such as satellites.

An important part of the magnetosphere is the magnetotail. The magnetotail is the part of the magnetosphere that extends away from the Sun, in the direction of the solar wind flow. Inside the magnetotail is the plasma sheet region, which is full of charged particles (plasma). The plasma sheet is important because it is the source region for the particles that get into the inner magnetosphere, creating the current that causes geomagnetic storms.

Nov 19, 2023

Lockheed Martin to deploy its first all-space 5G.MIL assets next year

Posted by in categories: internet, satellites

Following a successful laboratory test in October, Lockheed Martin has announced that it is gearing up for a 2024 orbital delivery of its 5G.MIL satellites.

Lockheed Martin.

Continue reading “Lockheed Martin to deploy its first all-space 5G.MIL assets next year” »

Nov 19, 2023

Amazon’s first two Project Kuiper satellites are ‘working brilliantly’

Posted by in categories: internet, satellites

Amazon has successfully tested its prototype satellites for its planned Project Kuiper.


Continue reading “Amazon’s first two Project Kuiper satellites are ‘working brilliantly’” »

Nov 16, 2023

Hunting satellite ARRAKIHS to launch in 2030. Here’s how it will work

Posted by in categories: cosmology, satellites

The European Space Agency is slated to launch a satellite in 2030 that’s meant to probe the nature of dark matter.

Nov 16, 2023

NASA Explorers Season 6, Episode 1: Launch

Posted by in categories: habitats, media & arts, satellites

A journey of a billion miles and back begins with a launch.

OSIRIS-REx’s goal: Travel to asteroid Bennu, collect a sample, and return it home. But why Bennu? Meet the NASA Explorers looking for clues to our early solar system in a sample of asteroid rock.

Continue reading “NASA Explorers Season 6, Episode 1: Launch” »

Nov 15, 2023

Fecal microbiota transplantation boosts survival in metastatic colorectal cancer treatment

Posted by in categories: biotech/medical, satellites

🧬 🔬 💊

In a recent study published in eClinicalMedicine, researchers assess the use of fecal microbiota transplantation to enhance the efficacy of anti-programmed cell death protein 1 (PD-1) therapy for patients with microsatellite stable metastatic colorectal cancer.

Study: Fecal microbiota transplantation plus tislelizumab and fruquintinib in refractory microsatellite stable metastatic colorectal cancer: an open-label, single-arm, phase II trial (RENMIN215). Image Credit: Peakstock / Shutterstock.com.

Continue reading “Fecal microbiota transplantation boosts survival in metastatic colorectal cancer treatment” »

Nov 14, 2023

EXCLUSIVE: The ‘Impossible’ Quantum Drive That Defies Known Laws of Physics was Just Launched into Space

Posted by in categories: quantum physics, satellites

A controversial new electric propulsion system, which physicists say defies Newton’s Laws of Motion, was launched into space this weekend aboard a Space X rocket.

Developed by electronics prototyping company IVO Ltd, the Quantum Drive took flight Saturday morning, November 11th, aboard SpaceX’s Transporter 9 mission. This flight included over 80 separate payloads destined for Low Earth Orbit (LEO).

“Launch and deployment were successful!” IVO’s owner and founder, Richard Mansell, told The Debrief in a Sunday email. “We’re getting the satellite’s ‘heartbeat.’ Next step is to establish communication with the satellite.”

Nov 9, 2023

SpaceX will launch Ireland’s 1st-ever satellite this month

Posted by in category: satellites

EIRSAT-1, a student-led gamma-ray astronomy cubesat, is due to launch atop a SpaceX Falcon 9 rocket at the end of November.

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