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A dwarf galaxy 100 million light years away is being stripped of its crucial star-forming gas, and it seems that the cosmic web is siphoning off this gas as the galaxy passes through

This finding is the first documented case of colonial behavior between two solitary species of spider

The surface of comet 3I/ATLAS may have been so radically altered by cosmic rays that deducing its home star system would be impossible

The surface of comet 3I/ATLAS may have been so radically altered by cosmic rays that deducing its home star system would be impossible

Week in images: 03-07 November 2025

Discover our week through the lens

Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why

Migraine and cluster headaches affect millions—yet research remains surprisingly thin.

As the United Nations COP30 climate change conference convenes in Belém, Brazil, the world's attention will turn to the heart of the Amazon rainforest – a region that symbolises both hope and concern in the fight against climate change.

Once considered one of Earth's most vital carbon sinks, the Amazon is now showing troubling signs – satellite observations reveal that parts of this vast ecosystem are no longer absorbing carbon dioxide as they once did. In some areas, the forest has even become a net source of carbon emissions.

Conditions on Venus’ surface have largely remained a mystery for decades. Carl Sagan famously pointed out that people were quick to jump to conclusions, such as that there are dinosaurs living there, from scant little evidence collected from the planet. But just because we have little actual data doesn’t mean we can’t draw conclusions, and better yet models, from the data we do have. A new paper from Maxence Lefèvre of the Sorbonne and his colleagues takes what little data has been collected from Venus’ surface and uses it to valid a model of what the wind and dust conditions down there would be like - all for the sake of making the work of the next round of Venusian explorer easier.

The interstellar comet: Can you see it in your scope? Maybe you can, starting late this week as Comet 3I/ATLAS emerges from behind the Sun. If you have a large […]

The post This Week's Sky at a Glance, November 7 – 16 appeared first on Sky & Telescope.

Image: Ahead of the 30th UN Climate Change Conference of the Parties (COP30) taking place in Belém, Brazil, from 10-21 November, this IRIDE image shows the Branco River and its surrounding forests in the Brazilian state of Roraima.

Long before humans reached orbit, insects had already shown they could handle the hurdles of spaceflight. Light, highly adaptable and nutritionally rich, these resilient animals present an attractive option for European researchers studying reliable food sources for long-duration missions.

New study reveals, for the first time, a tidal disruption event (TDE), where a black hole tears apart a star, occurring outside the center of a galaxy that produced exceptionally strong and rapidly evolving radio signals. This rare discovery shows that supermassive black holes can exist and remain active far from galactic cores, challenging current understanding of where such black holes reside and how they behave. The event’s delayed and powerful radio outbursts also suggest previously unknown processes in how black holes eject material over time.

Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.

There are no mini-Neptunes in our Solar System, yet they seem to be one of the most common types of exoplanets out there. Previous research shows that these planets are magma oceans. But new research based on JWST data shows that many of them may actually have solid surfaces.

The latest report shows that the estimated number of endangered vaquita porpoises has modestly increased

A noninvasive imaging technique can translate scenes in your head into sentences. It could help to reveal how the brain interprets the world

Jacob, an 11-year-old lion, has defied expectations by surviving for years after losing a leg – now we know his success is down to an innovative hunting strategy