Comet 3I/ATLAS or Alien Probe? Viral ESA Image of 'Rounded Spacecraft' Baffles Skywatchers Worldwide

ESA Mars and Jupiter missions track 3I/ATLAS; the 'rounded spacecraft' look is a stacked‑exposure artefact, with JUICE set ...

A Rare Green Comet Will Be Visible for the First Time in 1,000 Years. How to Spot It Tonight

Skywatchers can catch a rare glimpse of Comet Lemmon this month, and it won't be back until around the year 3175. Here's how ...

Comet From Another Solar System Approaching Sun—What We Know

The interstellar object 3I/ATLAS has gathered significant scientific attention, and soon it will reach its closest point to ...

Does Earth have 2 moons now? Here's the truth behind 'quasi moon' asteroid 2025 PN7

2025 PN7 is a small, dim asteroid that appears to orbit Earth, according to EarthSky. Believed to be a piece of the moon that ...
SETI Institute

Planetary Picture of the Day - Week of October 13, 2025

Comet C/2025 A6 (Lemmon) is brightening fast! Discovered in January by the Mount Lemmon Survey, it swings closest to Earth on ...

Stargazers told tonight last time to see 'once in lifetime' comet not coming back for 1,300 years

Astronomy enthusiasts are being offered an extraordinary opportunity tonight - the chance to witness a comet that won't grace ...

Comet Lemmon: How to see rare comet tonight before it vanishes for 1,300 years

Comet Lemmon is currently low in the northwestern sky after nightfall. According to the UK Space Agency, the best time to see ...

NASA's 'Training Exercise' Over 3I/ATLAS Sparks Fear of Hidden Interstellar Threat

The International Asteroid Warning Network (IAWN) launches a global campaign to improve comet astrometry, targeting the ...

Stargazers told tonight best time to see 'once in lifetime' comet which won't return for 1,300 years

Stargazing lovers are being given a once in several lifetimes chance tonight - to see a comet which will not return again for ...