"For the sage, time is only of significance in that within it the steps of becoming can unfold in clearest sequence."

— I Ching

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Tentative Exomoon Signal in HD 206893 B

Universe Today - Sun, 11/30/2025 - 4:55pm

Have scientists finally confirmed the existence of the first exomoon? This is what a recent study accepted for publication in Astronomy & Astrophysics hopes to address as a large international team of researchers investigated new methods for identifying an exomoon orbiting a gas giant exoplanet. This study has the potential to help scientists develop new methods for finding exomoons, the latter of which has yet to be confirmed.

Categories: Astronomy

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APOD - Sun, 11/30/2025 - 12:00pm

What created this unusual space sculpture?


Categories: Astronomy, NASA

Gaia Constraints on a 10 Myr Nearby Supernova

Universe Today - Sat, 11/29/2025 - 6:45pm

What can an ancient supernova teach scientists about Earth and celestial objects? This is what a recently submitted study to Astronomy & Astrophysics hopes to address as a team of scientists investigated the interaction of the remnants of supernova that occurred 10-million years ago with Earth. This study has the potential to help scientists better understand how Earth is influenced by celestial objects and what this could mean for the future of life on Earth, along with potentially habitable worlds beyond Earth.

Categories: Astronomy

New Model Explains Giant Planet Jet Streams

Universe Today - Sat, 11/29/2025 - 4:56pm

What can equatorial jet streams on gas giant planets teach scientists about gas giant planetary formation and evolution? This is what a recent study published in Science Advances hopes to address as a team of scientists investigated the mechanisms of jet streams on gas giants (Jupiter and Saturn) and ice giants (Uranus and Neptune). This study has the potential to help scientists better understand not only the formation and evolution of giant planets in our solar system, but exoplanets, too.

Categories: Astronomy

Scientists Investigate the Biological Effects of Spaceflight Using Worms

Universe Today - Sat, 11/29/2025 - 2:57pm

A crew of tiny worms will be heading on a mission to the International Space Station in 2026 that will help scientists understand how humans can travel through space safely, using a Leicester-built space pod.

Categories: Astronomy

<p><a href="https://apod.nasa.gov/apod

APOD - Sat, 11/29/2025 - 8:00am

How far can you see?


Categories: Astronomy, NASA

Could Symbolic AI Unlock Human-Like Intelligence?

Scientific American.com - Sat, 11/29/2025 - 8:00am

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

Categories: Astronomy

How Hidden Stars Shape Our Search for Technosignatures

Universe Today - Sat, 11/29/2025 - 6:12am

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.

Categories: Astronomy

Italian mission adds to growing IRIDE space fleet

ESO Top News - Sat, 11/29/2025 - 3:00am

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.

Categories: Astronomy

Water Retention on Earth-Like Planets Around Variable Stars

Universe Today - Sat, 11/29/2025 - 2:23am

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.

Categories: Astronomy

High-resolution radar satellites launched for Greece

ESO Top News - Sat, 11/29/2025 - 2:00am

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.

Categories: Astronomy

The Ultraviolet Mystery Inside Newborn Stars

Universe Today - Fri, 11/28/2025 - 7:07pm

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.

Categories: Astronomy

Modeling Venus Volcanic Plumes to Cloud-Level Heights

Universe Today - Fri, 11/28/2025 - 4:58pm

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.

Categories: Astronomy

ESA’s HydroGNSS mission launched to ‘scout’ for water

ESO Top News - Fri, 11/28/2025 - 4:50pm

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.

Categories: Astronomy

HydroGNSS launch highlights

ESO Top News - Fri, 11/28/2025 - 4:00pm
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.

Categories: Astronomy

First Private Space Telescope Launches Successfully

Sky & Telescope Magazine - Fri, 11/28/2025 - 2:04pm

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.

Categories: Astronomy

Ancient humans took two routes to Australia 60,000 years ago

New Scientist Space - Cosmology - Fri, 11/28/2025 - 2:00pm
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
Categories: Astronomy