On October 25, Saturn's moon Iapetus reaches inferior conjunction, positioned 1.3′ north of Saturn and shining at approximately 11th magnitude, making it easier to observe near its parent planet.

The emerging subdiscipline of "astroimmunology" has been formalized, focusing on understanding how spaceflight stressors significantly compromise the human immune system. A new guide, published in ...

On October 23, the Moon will pass 0.5° south of Antares, observable low in the southwest approximately 40 minutes after sunset, potentially revealing earthshine and Mare Crisium with binoculars.

On October 22, the Moon will achieve two close conjunctions, passing 5° south of Mars and 2° south of Mercury, before reaching its orbital apogee at 406,445 km (252,553 miles) from Earth. Observers ...

Systematic observation logging, a historical cornerstone of astronomical discovery from figures like Galileo and Herschel, continues to be a relevant practice for contemporary observers. Maintaining ...

On October 18, the predawn sky features a close celestial alignment of the Moon and Venus within the constellation Virgo. Venus appears as a magnitude -3.9 object, exhibiting a 94% illuminated gibbous ...

On October 17th, early morning observations of Jupiter will feature transits of Io's and Europa's shadows across its cloud tops, with specific timings varying by time zone. A telescopic view of ...

Step outside tonight in the early evening, when Sagittarius lies above the southwestern horizon. Globular cluster M22 shines brightly at magnitude 5.1, readily observable with binoculars or any size ...

The upcoming Full Moon, occurring at 11:48 P.M. EDT, is designated as the traditional Hunter’s Moon, and for this specific event, also as a Super Moon and the 2025 Harvest Moon. A Super Moon is ...

A new analysis of archival Cassini spacecraft data has definitively confirmed that organic molecules detected in the icy plumes emanating from Saturn’s moon Enceladus originate directly from its ...

Tiny pieces of glass found scattered across Australia have revealed evidence of a previously unknown giant asteroid impact. This discovery centers on a new type of tektite, a natural glass formed when ...

Saturn reached opposition at 2 A.M. EDT, exhibiting high visibility throughout the night and presenting optimal viewing conditions for its rings and moons. Saturn's apparent magnitude was 0.6 in ...