The interstellar object 3I/ATLAS—only the third ever detected passing through our Solar System—has surprised astronomers again. 🔹 Color Shift: As it approached perihelion, 3I/ATLAS changed color, appearing noticeably bluer. This likely reflects evolving chemistry in its coma: ionized gases like CO⁺ and CN fluoresce under solar radiation, while shifting dust‑to‑gas ratios alter its glow. 🔹 Non‑Gravitational Acceleration: Careful orbital fits now reveal that its path isn’t dictated by gravity alone. Just like comets in our own system, jets of sublimating ice appear to be giving it a tiny “rocket push,” nudging it off a purely gravitational trajectory. Why does this matter? Each interstellar object is a time capsule from another star system. By studying its changing colors and subtle accelerations, we’re learning how comets form and evolve in alien environments—and how similar (or different) they are to our own. 🔭 Keep watching: at around magnitude 9 near perihelion, 3I/ATLAS is within reach of small telescopes and strong binoculars under dark skies. Reference: Qicheng Zhang et. al, Rapid Brightening of 3I/ATLAS Ahead of Perihelion, arXiv:2510.25035 (astro-ph), DOI: 10.48550/arXiv.2510.25035 #3IATLAS #InterstellarComet #Astronomy #SpaceScience #Outgassing #CosmicVisitor #scrolllink

The James Webb Space Telescope detected dimethyl sulfide in its atmosphere (on Earth that comes from marine microorganisms). K2-18b is potentially habitable super-Earth about 2.6 times the size of our planet. It is located 124 light-years from the Solar System. #jamesWeb #space #telescope #scrolllink

𝐈𝐧𝐭𝐞𝐫𝐬𝐭𝐞𝐥𝐥𝐚𝐫 𝐉𝐞𝐭 𝐟𝐫𝐨𝐦 𝐖𝐞𝐛𝐛 What's at the tip of this interstellar jet? First let's consider the jet: it is being expelled by a star system just forming and is cataloged as Herbig-Haro 49 (HH 49). The star system expelling this jet is not visible -- it is off to the lower right. The complex conical structure featured in this infrared image by the James Webb Space Telescope also includes another jet cataloged as HH 50. The fast jet particles impact the surrounding interstellar gas and form shock waves that glow prominently in infrared light -- shown here as reddish-brown ridges. This JWST image also resolved the mystery of the unusual object at HH 49's tip: it is a spiral galaxy far in the distance. The blue center is therefore not one star but many, and the surrounding circular rings are actually spiral arms. #astronomy #space #stars #NASA #Webb #scrolllink

Deep space is full of mysteries that scientists are still trying to understand. It is the vast area beyond our solar system, filled with countless stars, galaxies, black holes, and strange cosmic phenomena. Many secrets of deep space remain unknown, such as how the universe began, what lies inside black holes, and whether life exists on other planets. Powerful telescopes and space missions help us explore these mysteries, but deep space is so enormous that much of it is still beyond our reach. The mystery of deep space inspires curiosity and shows how much more there is to discover about the universe.’ -Life Unfold #deepSpace #stars #planets #sun #otherEarth #mystry #scrolllink