A massive solar explosion has triggered a powerful geomagnetic storm, disrupting satellites, GPS systems, and flights across the globe. The flare erupted from sunspot AR4274, sending highly charged particles toward Earth. Experts say it caused a rare “Ground Level Event,” where radiation reached the surface. Passengers on polar flights may have faced higher radiation exposure. The US NOAA warned of possible power grid and radio signal disruptions. Dazzling auroras were seen as far south as Florida and Texas. Scientists compare this to the 2006 solar event and warn that more such storms could follow soon. (PC: India Today)

Astronomers are tracking a mysterious interstellar comet named 3I/ATLAS, which has shown strange changes as it nears the Sun. The comet, discovered in July in Chile, is only the third known visitor from outside our solar system. NASA said it poses no threat to Earth and will pass closest in December. Scientists say it has unexpectedly sped up, turned blue, and even lost its tail. Some experts believe gas loss is pushing it forward, while others explore more unusual ideas. The comet will remain under observation as it travels toward Jupiter in 2026. (PC: NDTV)

NASA’s Escapade Mars mission will launch early Monday aboard Blue Origin’s New Glenn rocket from Cape Canaveral, Florida. The mission will send two small spacecraft, named Blue and Gold, to study Mars’ magnetic field and how the planet lost its atmosphere. This is the second flight of the New Glenn rocket, and Blue Origin will try to land its first stage on a ship at sea. A successful landing would boost rocket reusability. The Escapade spacecraft will reach Mars in 2027 and help scientists learn more about the planet’s climate and its chances of supporting life. (PC: X)

The NISAR satellite — a joint mission between Indian Space Research Organisation (ISRO) and NASA — will be formally declared operational on 7 November 2025, ISRO Chairman V. Narayanan announced. Launched on 30 July 2025 weighing 2,400 kg, NISAR carries both L-Band and S-Band synthetic aperture radar sensors, enabling global land and ice-surface imaging every 12 days—even through clouds and at night. ISRO confirms data calibration is complete and a conclave is scheduled where NISAR’s science-phase commencement will be declared. 

ISRO successfully launched India's heaviest communication satellite, CMS-03, aboard the LVM3-M5 rocket from Sriharikota's Satish Dhawan Space Centre at 5:35 pm today. Weighing approximately 4,400 kilograms, CMS-03 represents the fifth operational flight of the LVM3 launcher. Deployed into Geosynchronous Transfer Orbit, the satellite will deliver multi-band communication services spanning India and surrounding ocean regions, enhancing secure data, voice, and video transmission for civilian and strategic applications. ISRO Chairman Dr. V. Narayanan commended the achievement, highlighting India's capability in heavy satellite development and deployment. Prime Minister Narendra Modi congratulated ISRO scientists via X, emphasizing the mission as testament to India's space sector excellence and innovation, further strengthening the nation's communication infrastructure.

ISRO on Sunday launched its heaviest communication satellite, CMS-03, aboard the powerful LVM3 rocket from Sriharikota at 5:26 pm. The 4,410 kg satellite separated from the rocket about 16 minutes after liftoff. Also called GSAT-7R, CMS-03 will greatly improve the Indian Navy’s communication network across the Indian Ocean. It offers secure, high-speed voice, data, and video links between ships, submarines, aircraft, and command centers. With broader coverage and stronger bandwidth than its predecessor GSAT-7 “Rukmini,” the satellite boosts India’s maritime security and strengthens self-reliance under the Atmanirbhar Bharat mission. (PC: India Today)

The Indian Space Research Organisation (ISRO) launched its heaviest communication satellite, CMS-03, from Sriharikota on Sunday evening. The satellite, weighing 4,410 kg, was carried by the LVM3-M5 rocket, also known as the ‘Bahubali’ for its power and size. The 43.5-metre-tall rocket lifted off at 5:26 pm after a smooth 24-hour countdown. This was the fifth operational flight of the LVM3 vehicle. The CMS-03 satellite will help improve communication services across India. Earlier, ISRO used foreign launch vehicles for heavy satellites, but this mission marks another step in India’s growing space capability and self-reliance. (PC: X/@isro)

ISRO successfully launched India's heaviest communication satellite, CMS-03, weighing 4,410 kg, aboard the LVM3-M5 "Bahubali" rocket on Sunday at 5:26 PM IST from Satish Dhawan Space Centre, Sriharikota. The satellite, launched into Geosynchronous Transfer Orbit, is the heaviest ever launched from Indian soil to GTO. The 43.5-meter tall three-stage rocket featuring two S200 solid boosters, L110 liquid stage, and C25 cryogenic stage separated CMS-03 at 179-kilometer altitude at 10 km/second velocity. The multi-band communication satellite will provide services over wide oceanic regions including the Indian landmass. The launch marks potential end to ISRO's reliance on France's Arianespace for heavy satellites. LVM3 previously successfully launched Chandrayaan-3 to the lunar South Pole in 2023.

ISRO is launching India's heaviest communication satellite, CMS-03 (GSAT 7R), Sunday at 5:26 PM from Satish Dhawan Space Station's second launch pad in Sriharikota, Andhra Pradesh. Weighing approximately 4,400 kg, the indigenously developed satellite will strengthen the Indian Navy's space-based communications and maritime domain awareness capabilities. The multi-band satellite will provide services over wide oceanic regions including the Indian landmass. The LVM3 launch vehicle which successfully landed Chandrayaan-3 on the lunar South Pole will carry CMS-03 in its fifth operational flight. The 43.5-meter vehicle, with 642-tonne lift-off mass, will separate the satellite at 179-kilometer altitude at 10 km/second velocity into Geosynchronous Transfer Orbit. The launch will be live-streamed on ISRO's YouTube channel. (PC: ISRO)

Indian Space Research Organisation (ISRO) is gearing up to launch its heaviest ever communications satellite, CMS‑03 (also referred to as GSAT-7R) for the Indian Navy on November 2 2025. The mission will lift off aboard the heavy-lift LVM3 rocket from the Satish Dhawan Space Centre in Sriharikota, and is expected to markedly strengthen naval communications and surveillance capabilities across the Indian Ocean region. (PC: ANI)