Magnetic avalanches power solar flares
Peer-Reviewed Publication
Updates every hour. Last Updated: 21-Jan-2026 05:11 ET (21-Jan-2026 10:11 GMT/UTC)
Just as avalanches on snowy mountains start with the movement of a small quantity of snow, the ESA-led Solar Orbiter spacecraft has discovered that a solar flare is triggered by initially weak disturbances that quickly become more violent. This rapidly evolving process creates a ‘sky’ of raining plasma blobs that continue to fall even after the flare subsides.
Space exploration is significant for scientific innovation, resource utilization, and planetary security. Space exploration involves several systems including satellites, space suits, communication systems, and robotics, which have to function under harsh space conditions such as extreme temperatures (− 270 to 1650 °C), microgravity (10-6 g), unhealthy humidity (< 20% RH or > 60% RH), high atmospheric pressure (~ 1450 psi), and radiation (4000–5000 mSv). Conventional energy-harvesting technologies (solar cells, fuel cells, and nuclear energy), that are normally used to power these space systems have certain limitations (e.g., sunlight dependence, weight, degradation, big size, high cost, low capacity, radioactivity, complexity, and low efficiency). The constraints in conventional energy resources have made it imperative to look for non-conventional yet efficient alternatives. A great potential for enhancing efficiency, sustainability, and mission duration in space exploration can be offered by integrating triboelectric nanogenerators (TENGs) with existing energy sources. Recently, the potential of TENG including energy harvesting (from vibrations/movements in satellites and spacecraft), self-powered sensing, and microgravity, for multiple applications in different space missions has been discussed. This review comprehensively covers the use of TENGs for various space applications, such as planetary exploration missions (Mars environment monitoring), manned space equipment, In-orbit robotic operations /collision monitoring, spacecraft's design and structural health monitoring, Aeronautical systems, and conventional energy harvesting (solar and nuclear). This review also discusses the use of self-powered TENG sensors for deep space object perception. At the same time, this review compares TENGs with conventional energy harvesting technologies for space systems. Lastly, this review talks about energy harvesting in satellites, TENG-based satellite communication systems, and future practical implementation challenges (with possible solutions).
The SETI Institute announced that alliant Global CEO, Dhaval Jadav, joined its Board of Directors. Dhaval brings a deep lifelong passion for space science, a strong commitment to STEM education, and a shared belief in the SETI Institute’s mission to explore one of humanity’s most profound questions: Are we alone in the universe?
This marks the beginning of a strategic partnership that gives the SETI Institute the ability to leverage alliant’s resources and AI capabilities in the search for extraterrestrial life.
“As a kid nothing got me more excited to learn about space than the thought of extraterrestrials being out there,” said Dhaval. “I think we’ve lost some of that sense of wonder, the curiosity that drives people to look beyond their screens and ask big questions about the universe. I wholeheartedly believe in the SETI Institute’s mission, and I hope alliant can help the SETI Institute be a beacon that rekindles that curiosity and inspires people to seek answers to life’s biggest mysteries.”
A Simon Fraser University cosmologist believes his team’s new research may bring them a step closer to cracking one of science’s biggest questions – the Hubble tension.
The quest to determine how fast the universe is expanding has irked cosmologists for decades, leading it to be dubbed the Hubble tension – or even the Hubble crisis.
But new findings, published in Nature Astronomy, could help to finally answer the cosmic question.
New research from the University of Rochester suggests that molten rock deep inside so-called super-earths may generate powerful magnetic fields necessary for sustaining life.