Scanning the constellation Cepheus the King leads us to one of the sky’s largest emission nebulae — IC 1396. It measures a whopping 2.8° by 2.3°. But this region also contains dark nebulae and a ...

Mars was a very different place as a young planet. Liquid water dotted the Red Planet’s landscape with lakes and rivers. But the planet’s climate changed drastically in the past few billion years.

Light pollution reduction (LPR) filters function by selectively blocking specific wavelengths of light emitted by certain artificial sources, such as high-pressure sodium streetlights, which ...

Comet C/2025 A6 (Lemmon) unexpectedly continued to brighten past its predicted peak on October 21, achieving an estimated 4th magnitude. Despite its brightness, increasing lunar illumination ...

On October 27th, Jupiter will be observable south of Pollux in Gemini at magnitude –2.2, with East Coast observers having the opportunity to witness an occultation of its moon Io between approximately ...

Saturn is visible only briefly in early February, but its rings are nearly edge-on. Venus is bright and easily visible throughout February, changing in phase and apparent size. Jupiter shows its moons ...

China is preparing for the Shenzhou-21 crewed mission, targeting the Tiangong space station. The mission's launch, utilizing a Long March-2F carrier rocket from the Jiuquan Satellite Launch Center, is ...

Guidance is provided for observing the planet Mercury. Optimal viewing is specified as shortly after sunset, with Mercury positioned low in the western sky. Binoculars are recommended as an aid, ...

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.

Astronomers have detected the first tidal disruption event (TDE), designated AT2024tvd, occurring 2,600 light-years outside its host galaxy's core, exhibiting intense, rapidly evolving radio signals.

The SPAINSAT New Generation II satellite is scheduled for launch via a SpaceX Falcon 9 from Cape Canaveral on October 22, representing the second component of the SpainSAT NG program. Operated by ...

The 2025 astronomical year will feature Mars at opposition on January 15/16, exhibiting increased brightness and apparent size. Significant planetary events include Venus's transition from evening to ...