Tag Archives: Comet

Press enter or click to view image in full size Color and brightness images of the new bright comet C/2025 R2 (SWAN) from the iTelescope.net T59 (0.51-m f/6.8 reflector + CCD) located at the Siding Spring Observatory, Australia. (Credit: Filipp Romanov) The SWAN instrument onboard the Solar and Heliospheric Observatory (SOHO) spacecraft revealed on September 11, 2025 the presence of …

NASA has responded to claims – popularized by Harvard professor Avi Loeb – that the interstellar object 3I/ATLAS is a spacecraft sent to the Solar System by an advanced alien civilization. On July 1, 2025, astronomers spotted an object moving through the Solar System at nearly twice the velocity of previous interstellar visitors ‘Oumuamua and Comet Borisov. The object, which …

Here’s an image of the new Comet SWAN25B. Michael Matiazzo captured this image on September 14, 2025. It shows an impressive, 2.5-degree-long tail, which translates to about 5 full-moon diameters long! The bright star in the upper left of the image is Spica. The comet will pass close to that star around September 15-16. New Comet SWAN25B soars into the …

On Sept. 7 2025, the skies darkened as Earth’s shadow consumed the moon. Skywatchers in many parts of the world saw the moon turn blood red due to a total lunar eclipse. For amateur astronomers Michael Jäger and Gerald Rhemann in Namibia, the eclipse was not only a sight to behold, but it also gave them an unprecedented opportunity: the …

After 1I/ʻOumuamua and 2I/Borisov, 3I/ATLAS is the third object and the second comet from outside the Solar System confirmed. This image from the Multi-Object Spectrograph (GMOS-N) at the Gemini North telescope shows the interstellar comet 3I/ATLAS. Image credit: International Gemini Observatory / NOIRLab / NSF / AURA / K. Meech, IfA & U. Hawaii / Jen Miller & Mahdi Zamani, …

Surprising new photos of comet 3I/ATLAS taken during last week’s total lunar eclipse hint that the “interstellar visitor” may be turning bright green as it approaches the halfway point on its journey through the solar system. This unexpected transformation, if confirmed, is likely the result of the comet’s increasing proximity to the sun, experts say. 3I/ATLAS is a roughly 7-mile-wide …

Skywatchers at Nasa have discounted a Harvard astronomer’s hypothesis that a rare interstellar object hurtling through our solar system is a relic from a civilization in another celestial neighborhood, and “could potentially be dire for humanity”. Avi Loeb, head of Harvard University’s Galileo Project, which searches for evidence of extraterrestrial intelligence, raised eyebrows by suggesting in a scientific paper in …

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system. Despite some suggestions that it could be an alien spacecraft, observations from some of the most powerful telescopes quickly revealed it to be a comet rocketing our way. It might not be aliens making first contact, yet 3I/Atlas, as only the third …

A stunning new telescope image has revealed the growing tail of the interstellar comet 3I/ATLAS. The luminous limb is starting to take shape as the icy interloper zooms ever closer to the sun on its one-way trip through the solar system. 3I/ATLAS is a roughly 7-mile-wide (11 kilometers) comet that was first spotted in early July and is zooming toward …

A new image of the interstellar comet 3I/ATLAS shows it’s becoming more active and its tail is getting longer as it makes its way through our inner Solar System. The image was captured by both astronomers and students working together with the Gemini South telescope at Cerro Pachón in Chile. It shows the growing tail of comet 3I/ATLAS, as well …