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Space Science

Alien Probe or Cosmic Relic? Interstellar Comet 3I/ATLAS Baffles Scientists (updated 27.10.2025)

Third Interstellar Comet 3I/ATLAS Stuns Scientists With Surprising Brightening and Blue Glow

Discovery and Interstellar Identity Comet 3I/ATLAS (officially Interstellar Comet 3I/ATLAS) was first spotted on July 1, 2025, by the NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) telescope in Río Hurtado, Chile newsweek.com. Right away, its orbit stood out as hyperbolic, meaning it isn’t bound to the Sun by gravity and is just passing through. This identified 3I/ATLAS as an interstellar object – a rare visitor from another star system. It is only the third such interstellar traveler ever detected, after the mysterious cigar-shaped 1I/ʻOumuamua in 2017 and the comet 2I/Borisov in 2019 space.com. The “3I” designation literally means third interstellar,
4 November 2025
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Interstellar Comet 3I/ATLAS Shrouded in CO₂ Fog – NASA’s SPHEREx Reveals a Cosmic Visitor’s Secrets

Is 3I/ATLAS an Interstellar Messenger? New Findings Debunk Alien Rumors but Reveal an Ancient, Carbon‑Rich Comet

A Rare Interstellar Visitor When astronomers with the Asteroid Terrestrial‑impact Last Alert System (ATLAS) noticed an object with an extraordinarily high orbital eccentricity racing through the outer solar system in June 2025, they immediately suspected an interstellar origin. Follow‑up observations confirmed that the body, now designated 3I/ATLAS, follows a hyperbolic path and moves faster than any known comet, approximately 210 000 km per hour esa.int. Unlike periodic comets, this object will never return once it leaves the Sun’s gravitational grasp, making it only the third confirmed interstellar visitor after ʻOumuamua in 2017 and 2I/Borisov in 2019 science.nasa.gov. The comet’s trajectory takes it between
5 October 2025
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Space Science in July 2025: Breakthroughs, Setbacks, and the Expanding Frontier / Updated: 2025, July 4th, 00:00 CET

Space Science in July 2025: Breakthroughs, Setbacks, and the Expanding Frontier / Updated: 2025, July 4th, 00:00 CET

Astronomers confirmed 3I/ATLAS (C/2025 N1) as the third confirmed interstellar object to visit our solar system, about 20 km wide, detected by NASA’s ATLAS survey, and it will pass inside Mars’ orbit in October 2025 at a minimum distance of 1.6 AU. NASA’s James Webb Space Telescope directly imaged exoplanet TWA 7 b, a Saturn-mass world 34 light-years away, making it the lightest planet ever directly imaged and potentially habitable. MethaneSAT, an $88 million methane-emissions satellite backed by Jeff Bezos, Google, and the Environmental Defense Fund, launched in March 2024 and lost contact after just over a year, deemed unlikely
4 July 2025
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3I/ATLAS: The Fastest Interstellar Comet Ever—Here’s What Scientists Are Saying

3I/ATLAS: The Fastest Interstellar Comet Ever—Here’s What Scientists Are Saying

3I/ATLAS (C/2025 N1) is the third identified interstellar object, discovered on 1 July 2025 by the ATLAS telescope in Chile. It is on an extremely hyperbolic trajectory with a velocity of about 68 km/s and will reach perihelion on 29 October 2025 at 1.36 au, inside Mars’s orbit. It poses no threat to Earth. Early images show a faint coma and a short 3-arcsecond tail, confirming cometary activity. Detected at 4.5 au from the Sun months before perihelion, it offers an unprecedented window to study its composition, rotation, and size. The hyperbolic excess velocity v∞ is 57 km/s, making 3I/ATLAS
3 July 2025
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Historic Liftoff! Poland’s “Star Scientist” Launches on SpaceX Dragon—All the Inside Details on the Ax-4 Mission, Crew and Experiments

Historic Liftoff! Poland’s “Star Scientist” Launches on SpaceX Dragon—All the Inside Details on the Ax-4 Mission, Crew and Experiments

On June 25 at 08:31 CEST, SpaceX Crew Dragon “Grace” launched from Pad 39A with four astronauts on Axiom Mission 4 (Ax-4). Peggy Whitson (USA) commands Ax-4 and is on her fifth spaceflight, with a U.S. orbital record of 675 days. Shubhanshu Shukla (India) is Pilot for Ax-4, becoming the first Indian in space since 1984. Sławosz Uznański-Wiśniewski (Poland) is the first Polish national on the ISS and the second Pole in space. Tibor Kapu (Hungary) is Ax-4’s Mission Specialist, marking Hungary’s first visitor to the ISS. Poland’s 47-year space drought ends with Ax-4, following Mirosław Hermaszewski’s 1978 Soyuz 30
25 June 2025
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ISRO’s Lunar Success (Chandrayaan-3) and Momentum for Mars Exploration

ISRO’s Lunar Success (Chandrayaan-3) and Momentum for Mars Exploration

Chandrayaan-3, launched July 2023, achieved a soft landing near the Moon’s south pole on August 23, 2023, with lander Vikram and six-wheeled rover Pragyan. The mission conducted 14 days of surface operations and returned at least 1100 images and data, including ChaSTE soil temperature measurements to 10 cm depth. Chandrayaan-3 marked India’s first soft landing in the lunar south polar region and made India the fourth country to soft-land on the Moon. The mission cost was about $75 million. India’s Mars Orbiter Mission (MOM / Mangalyaan-1) launched on November 5, 2013 atop a PSLV-XL, with a dry mass of about
16 June 2025
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