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Combining newer neural networks with older AI systems could be the secret to building an AI to match or surpass human intelligence

How can star populations help astronomers re-evaluate the search for intelligent extraterrestrial life, also called technosignatures? This is what a recently submitted study hopes to address as a team of scientists investigated the parameters of identifying locations of technosignatures, also called extraterrestrial transmitters. This study has the potential to help astronomers constrain the criteria for finding intelligent life in both our galaxy and throughout the universe.

The Italian programme IRIDE, which provides public sector services based on data from its fleet of Earth observation constellations, has added eight satellites to its second constellation, Eaglet II.

What can star variability—changes in a star’s brightness over time—teach astronomers about exoplanet habitability? This is what a recent study accepted to The Astronomical Journal hopes to address as a team of scientists investigated the interaction between a star’s activity and exoplanetary atmospheres. This study has the potential to help astronomers better understand how star variability plays a role in finding habitable exoplanets, specifically around stars that are different from our Sun.

Thanks to the EU-funded Recovery and Resilience Facility, and through collaboration between the Greek government, the private satellite company ICEYE and the European Space Agency (ESA), two new high-resolution radar satellites have been launched to strengthen disaster management, environmental monitoring and national security across Greece.

Young stars buried deep in molecular clouds are bathed in ultraviolet radiation, but they shouldn't be. Protostars are too cold and dim to produce UV light themselves, yet James Webb Space Telescope observations of five stellar nurseries in Ophiuchus reveal its unmistakable signature affecting the surrounding gas. Astronomers tested the obvious explanation that nearby massive stars illuminate these birthplaces but subsequently ruled it out. The UV radiation must be coming from inside the star forming regions themselves, forcing a fundamental rethink of how stars are born.

What is the importance of studying explosive volcanism on Venus? This is what a recent study published in the Journal of Geophysical Research: Planets hopes to address as a team of scientists investigated the potential altitudes of explosive volcanism on Venus. This study has the potential to help scientists better understand the present volcanic activity on Venus, along with gaining insight about its formation and evolution and other planetary bodies throughout the solar system and beyond.

The European Space Agency’s first Scout mission, HydroGNSS, was launched today, 28 November, marking a significant step in advancing global understanding of water availability and the effects of climate change on Earth’s water cycle.

The two twin HydroGNSS satellites were carried into orbit at 19:44 CET aboard a SpaceX Falcon 9 rocket, as part of the Transporter-15 rideshare flight from the Vandenberg Space Force Base in California.

Video: 00:02:51

ESA’s first Scout mission, HydroGNSS, was launched on 28 November 2025, marking a significant step in advancing global understanding of water availability and the effects of climate change on Earth’s water cycle.

The two twin HydroGNSS satellites were carried into orbit aboard a SpaceX Falcon 9 rocket from the Vandenberg Space Force Base in California, US.

Embracing the New Space concept, HydroGNSS is one of ESA’s new Scout missions being developed within the Earth Observation FutureEO programme.

A small space telescope may signal a big new trend for modern astronomy.

The post First Private Space Telescope Launches Successfully appeared first on Sky & Telescope.

Scientists have long tried to uncover the perilous journey humans took to reach the ancient land mass that now makes up Australia. Now, a genetic study has edged us closer to understanding how and when they achieved this

Scientists have long tried to uncover the perilous journey humans took to reach the ancient land mass that now makes up Australia. Now, a genetic study has edged us closer to understanding how and when they achieved this

NASA's Cassini spacecraft captured dramatic plumes, both large and small, spray water ice out from many locations along the famed 'tiger stripes' near the south pole of Saturn's moon Enceladus.

NASA/JPL-Caltech/Space Science Institute

Dramatic plumes, both large and small, spray water ice out from many locations along the famed tiger stripes near the south pole of Saturn’s moon Enceladus in this image released on Feb. 23, 2010. A study published in October 2025 analyzed data from NASA’s Cassini mission and found evidence of previously undetected organic compounds in a plume of ice particles like the ones seen here. The ice particles were ejected from the ocean that lies under Enceladus’ frozen shell. Researchers spotted not only molecules they’ve found before but also new ones that lay a potential path to chemical or biochemical activity.

Learn more about what they discovered.

Image credit: NASA/JPL-Caltech/Space Science Institute

NASA/JPL-Caltech/Space Science Institute

Dramatic plumes, both large and small, spray water ice out from many locations along the famed tiger stripes near the south pole of Saturn’s moon Enceladus in this image released on Feb. 23, 2010. A study published in October 2025 analyzed data from NASA’s Cassini mission and found evidence of previously undetected organic compounds in a plume of ice particles like the ones seen here. The ice particles were ejected from the ocean that lies under Enceladus’ frozen shell. Researchers spotted not only molecules they’ve found before but also new ones that lay a potential path to chemical or biochemical activity.

Learn more about what they discovered.

Image credit: NASA/JPL-Caltech/Space Science Institute

Google is reportedly in talks to sell its tensor processing units – a type of computer chip specially designed for AI – to other tech companies, a move that could unsettle the dominant chip-maker Nvidia