• Rio Bonito do Iguaçu tornado upgraded to EF-4, placing Brazil among sites of 2025’s most violent tornadoes worldwide

    ByTeo Blašković

    A new assessment by MetSul Meteorologia confirms that the deadly tornado that struck Rio Bonito do Iguaçu, Paraná, Brazil, on November 7, 2025, reached EF-4 intensity on the Enhanced Fujita Scale, with estimated wind speeds between 250 km/h and 300 km/h (155 mph to 186 mph). The event killed six people, injured more than 400, and destroyed much of the city’s urban area, making it one of the most intense tornadoes recorded globally in 2025.

  • Asteroid 2025 UC11 flew past Earth at 0.01 LD

    ByTeo Blašković

    A newly discovered asteroid designated 2025 UC11 flew past Earth at a distance of 0.017 lunar distances (0.00004 AU / 6 599 km / 4 101 miles) at 12:11 UTC on October 30, 2025. The object was first detected seven hours earlier by the JPL SynTrack Robotic Telescope in Auberry, California.

  • 3I/ATLAS completes inbound leg of its Solar System passage on October 29

    ByReet Kaur

    Interstellar object 3I/ATLAS (C/2025 N1 ATLAS) will reach its perihelion distance of about 1.36 AU from the Sun on October 29, 2025, marking the midpoint of its one-time passage through the Solar System. The hyperbolic object will be unobservable from Earth during the event but will later pass within 97 million km (60 million miles) of Venus and 54 million km (34 million miles) of Jupiter on its way out of the system.

  • Very bright, slow-moving bolide illuminates night sky over Moscow, Russia

    ByTeo Blašković

    A bright green bolide, a natural meteoroid entering Earth’s atmosphere, illuminated the skies over Moscow, Russia, at around 00:30 UTC on October 27, 2025. The object produced several bright flashes and visible fragmentation as it moved across the sky, leaving a persistent trail. Analysis of multiple videos confirms its natural origin, distinguishing it from any satellite or rocket re-entry.

  • Earth’s electrical rings released rare energy leak during recent G2 geomagnetic storm

    ByReet Kaur

    A G2 – Moderate geomagnetic storm on October 18, 2025, produced an extremely bright red SAR arc visible from the United States to northern Europe. The event showed an unusually efficient release of energy from Earth’s ring current system, challenging current understanding of how the planet’s magnetic field interacts with the atmosphere.

  • Arctic polar vortex shows rare early signs of weakening and displacement

    ByRishav Kothari

    Forecast data indicate an early weakening and displacement of the stratospheric polar vortex over the Arctic in October 2025, as a developing high-pressure anomaly over Greenland interacts with the circulation earlier than usual, increasing the chances of colder air movement toward the mid-latitudes of North America and Europe.