Monday, July 6, 2026

Andromeda's Newest Dwarf Galaxy is Extremely Dim

Andromeda XXXVI (And 36) is shown in red in this image. It's one of many dwarf galaxies found around Andromeda, or M31, in the center of the image. And 36 is about 12.5 billion years old and is about 390,000 light years away from Andromeda. Image Credit: Sakowska et al. 2026. A&A.

Astronomers have discovered an extremely low-mass and dim dwarf galaxy around Andromeda. Called And 35, it's an Ultra-Faint Dwarf Galaxy (UFDG) and so far, the researchers have detected only 46 of its stars. Lambda-CDM predicts that there should be many UFDGs around galaxies like Andromeda and the Milky Way, so finding more of them is important.



New Horizons Watches the Solar Wind as it Slows Down

An artist's conception of the heliosphere, the bubble generated by the Sun's magnetic field and envelopes the solar system. The Sun generates the solar wind that flows out past the planets. Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

Where does the Solar System end and interstellar space begin? That's a question scientists have been working to answer using spacecraft traveling out beyond the Sun's influence. A team of researchers from the Southwest Research Institute led by Heather Elliott, is using the Solar Wind around Pluto instrument onboard New Horizons to track the solar wind in the outer reachers of the Solar System.



A New Net-Membrane Could Clean Up Some Tricky Space Debris

Image of the RemoveDEBRIS debris removal demonstration satellite, which used a net to prove the concept of deorbiting debris with that implement. Credit - NASA/Expedition 56 crew

We’ve reported on all kinds of wacky ideas for capturing and deorbiting space debris safely. From electric tethers to lasers, engineers and scientists have been trying everything they can think of to deal with the ever-increasing orbital debris problem. But one simple design keeps popping up over and over again - a net. A new paper from researchers at the Chinese Academy of Sciences and the University of Electronic Science and Technology of China details one of the most advanced net concepts yet - but whether we can actually build one remains to be seen.



The Square Kilometre Array Will Revolutionize the Hunt for Alien Life

Artist's impression of the SKA. Credit - SKA Project Development Office and Swinburne Astronomy Productions

With new technologies come new opportunities. And that is especially true in astronomy - with every new advanced telescope we have the potential to see (or in some cases, listen) further and more clearly than we ever have before. That is certainly the case for the new Square Kilometre Array (SKA), which is currently undergoing a multi-year roll out phase. Despite that drawn out process, astronomers are already excited about its potential, and a new book chapter from Dr. Chenoa Tremblay and her co-authors details how this new technology could be used to answer one of the most fundamental questions - are we alone?



Sunday, July 5, 2026

Nearby "Super Earth" Could Host Life After All

Artist’s conception of the view from the surface of the habitable-zone super-Earth exoplanet GJ 3378b. Credit: Nikolai Berman/UC Irvine.

Using the Hobby-Eberly Telescope at McDonald Observatory, astronomers have taken a closer look at a nearby exoplanet and discovered it may be more Earth-like than previously thought.Using the Hobby-Eberly Telescope at McDonald Observatory, astronomers have taken a closer look at a nearby exoplanet and discovered it may be more Earth-like than previously thought.



Astronomers Characterize "Improbable" System Shaped by Brown Dwarf

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An international team involving over ten institutions, with a strong participation from ESO and INAF, has characterised TOI-201 c, the transiting brown dwarf with the longest period for which mass has been measured. The study, published today in Nature, reveals a compact, coplanar system in which the presence of a massive, eccentric object redefines the stability boundaries for the inner planets



Saturday, July 4, 2026

In Anticipation of New Horizons Entering Interstellar Space, Researchers are Developing a Solar Wind Forecasting Method

Solar wind data and solar wind pressure forecasts provide important information for heliospheric models to help predict when the New Horizons spacecraft will encounter the heliospheric termination shock, on its way to joining the Voyager 1 and 2 spacecraft in interstellar space. Credit: Credit: NASA/IBEX/Adler Planetarium/SwRI

Southwest Research Institute (SwRI) scientists are using a solar wind forecasting method combined with analytic and numerical heliosphere models to find out where the first plasma boundary of the outer heliosphere lies as NASA’s New Horizons spacecraft hurtles toward this mysterious region of space.