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Category: satellites – Page 35

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.

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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.

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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.

It’s not rockets and satellites that make NASA soar. It’s people. Go inside the space agency and follow the pioneers, risk-takers and experts at the frontline of exploration. This season, follow along with the OSIRIS-REx team, as they launch a spacecraft to an asteroid, collect a sample of Bennu, and bring it home to Earth.

Watch this series and more on NASA+, our no cost, ad-free streaming service. No subscription required. https://plus.nasa.gov.

Created by: James Tralie.
Producers: James Tralie, Dan Gallagher, Lauren Ward, Katy Mersmann.
Scientists: Dante Lauretta, Mike Drake, Dani DellaGiustina, Christina Richey, Jason Dworkin, Rich Kuhns, Sandy Freund, Olivia Billett.
Videographers: Rob Andreoli, John Philyaw, John Caldwell.
Animation: Walt Feimer, Michael Lentz, Jonathan North, Adriana Manrique Gutierrez, Krystofer Kim, James Tralie, Bailee DesRocher, Jacquelyn DeMink, Lisa Poje.
Sound Design: James Tralie.
Data Visualization: Kel Elkins.
NASA+ Executive Producer: Rebecca Sirmons.

Music provided by Universal Production Music: “Vortex” Tom Sue and Zac Singerz; “Tested to the Limit” Krantz; “Interstellar” Alan Myson; “Ascension” Alan Myson; “In a Perfect World” Angus Pendergast; “Tough Terrain” Ty Unwin; “Do Androids Dream” Aidan Lavelle; “Kyoto Vision” Andy Blythe and Marten Joustra; “Presidential Destiny” Laurent Dury; “Driving Force” Ben Niblett and Jon Cotton; “Break the Rules” Tihomir Hristozov; “Deadlock” Dean McGinnes; “Final Preparations” Alan Boyd; “Tundra Sunrise” Ty Unwin; “Zero In” Airglo; “Stepping out of the Darkness” Ty Unwin; “Dark Intensity” Jeremy Smith; “Regeneration” Andy Blythe and Marten Joustra; “Warm Drift” Alan Myson; “Distant Suns” Jason Soudah; “Scenes of Devastation” Benji Merrison and Will Slater; “Look to the Stars” Alan Boyd; “Warming” Benji Merrison and Will Slater.

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

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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.

Background

Colorectal cancer is one of the three most prevalent forms of cancer throughout the world and, as a result, a major cause of cancer-related mortality. The current standard first-and second-line treatments for metastatic colorectal cancer include therapies targeting epidermal growth factor (EGF) or vascular endothelial growth factor (VEGF) receptors combined with fluorouracil-based chemotherapy. However, there remains a lack of third-line treatments, with existing options often associated with low efficacy and a high rate of adverse events.

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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.”

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Provocative Silicon Valley artist Agnieszka Pilat has strong beliefs regarding the intermingling of art, religion and technology, something that keeps her fertile muse alert amid multiple presentations, exhibitions and appearances at global events such as the recent TED AI 2023 conference in San Francisco.

The Polish-born Pilat’s current SpaceX Artist-in-Residence program at the aerospace firm’s Hawthorne, California facility will likely run through 2024 and comes right before a December exhibition at the National Gallery of Victoria’s Triennial in Australia. There, for three months, her black-and-yellow Boston Dynamics robodogs will be creating autonomous artwork via a series of pre-programmed instructions.

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