Would You Be Interested in a Women in Stem-Focused Book Club?
We’re thinking about starting a Zoom book club in January focused on biographies and memoirs about Women in STEM–and we’d love to know if you’d be interested in joining!
November 2025
The Triangulum Galaxy (M33)
Credit: Chuck Wraith
The Triangulum Galaxy is a large spiral galaxy found in the Triangulum Constellation and is 3 million LYRs away from us.
The Keen-Eyed Vera Rubin Observatory Has Discovered a Massive Stellar Stream
The Vera Rubin Observatory’s first light images captured the Virgo Cluster of galaxies, highlighting the discovery of a massive 163,000-light-year-long stellar stream extending from the spiral galaxy Messier 61. This stream is likely the remnant of a dwarf galaxy or globular cluster torn apart by tidal forces.
Rapid Brightening of Interstellar Comet 3I/ATLAS As It Nears Sun Surprises Scientists
An interstellar comet named 3I/ATLAS, only the third of its kind recorded, recently passed close to the sun, brightening at an unprecedented rate and appearing blue instead of the usual red. This unusual behavior has puzzled scientists, who monitored it using space-based solar observatories due to solar glare blocking Earth-based views. Researchers suggest the brightness surge may be caused by visible gas emissions as the comet neared perihelion.
A Study Has Found New Organic Molecules on Saturn’s Moon Enceladus. Scientists Say That Increases the Chance It’s Habitable
Scientists have discovered new organic compounds in icy geysers from Saturn’s moon Enceladus, suggesting it may have conditions suitable for life. Using data from NASA’s Cassini spacecraft flyby in 2008, researchers analyzed young ice grains from the moon’s plumes, which collided with Cassini’s instruments at high speeds, revealing clearer chemical signatures. While Enceladus is considered habitable due to its subsurface ocean and water plumes, the presence of life remains unknown.
Scientists Find an Explanation for Oddball, Water-Rich Exoplanets: They Make Their Own Water
Scientists have discovered that many sub-Neptune exoplanets, which are between the size of Earth and Neptune, have significant amounts of water on their surfaces even when located close to their host stars where water should not exist. A new study suggests that these planets produce water through chemical reactions between their rocky cores and hydrogen atmospheres. Experiments show that oxygen released from silicate magma reacts with hydrogen under high pressure to create substantial water, challenging previous explanations that relied on formation beyond the snow-line or delivery by comets and asteroids.
Where Does the Expanding Universe Begin?
If we look out at the distant galaxies in the Universe, particularly at great distances, we find that they’re all receding away from us: strong evidence that the Universe is expanding.
But here on local scales, including on Earth, in our Solar System, and across the Milky Way, we see no evidence for this expansion at all.
Mini-Neptune Exoplanet Orbiting Bright K-Type Star Discovered With TESS
Astronomers using NASA’s TESS have discovered a new exoplanet named TOI-283 b orbiting a bright K-type star called TOI-283. This exoplanet is about 40% smaller than Neptune. The star, located approximately 269 light years away, is slightly smaller and less massive than the Sun. TESS has been observing this star since 2018, detecting the transit signal that led to the planet’s identification. TESS has found over 7,700 candidate exoplanets so far, with 705 confirmed through follow-up observations.