Jupiter reaches opposition on December 7th, offering northern hemisphere observers its best apparition in a decade, reaching a magnitude of –2.8 and exhibiting observable atmospheric details such as ...

Neptune reached opposition on September 20th, offering optimal viewing conditions around local midnight. Observation requires binoculars or a telescope due to its 7.7 magnitude. Lambda Piscium serves ...

A total solar eclipse, visible across parts of North America on April 8th, necessitates safe viewing practices due to the potential for solar retinopathy, permanent eye damage caused by excessive ...

The SpaceX Dragon spacecraft carrying the Axiom Mission 4 (Ax-4) crew successfully launched at 2:31 a.m. EDT on June 25, 2025, from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. The ...

The Kepler Space Telescope, launched in 2009, successfully employed the transit method to search for exoplanets, ultimately observing over 500,000 stars and contributing to the discovery of almost ...

Launched on May 30, 1971, Mariner 9 achieved orbit around Mars on November 13, 1971, becoming the first spacecraft to orbit another planet. Following the failure of its counterpart, Mariner 8, Mariner ...

The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each issue includes expert science reporting, vivid color ...

The universe's expansion is accelerating, a phenomenon attributed to dark energy, potentially explained by a cosmological constant (Λ) in Einstein's general relativity. The ΛCDM model, the standard ...

August 2025 offers several planetary conjunctions, including a close approach of Venus and Jupiter on August 12th, and a second conjunction of Saturn and Neptune on August 6th, with a third occurring ...

September offers various celestial events, including Saturn and Neptune's oppositions, Mars's approach to solar conjunction, and favorable viewing of Uranus and Jupiter. Multiple transits of Saturn's ...

Jupiter and Mars will appear very close together in the morning sky on August 14th. Venus is a bright evening star, easily visible shortly after sunset. Saturn is visible in the evening sky, rising ...

October features significant planetary phenomena, including two transits of Titan across Saturn and recurring tandem transits of Io and Europa across Jupiter's disk, often with their shadows. The ...