lighter than the objects found in typical accreting binaries: the central star is roughly 85 times the mass of Jupiter, while the companion brown dwarf is approximately 25 times the mass of Jupiter. Because the receiving star is physically large, the...

Miles of the University of Arizona’s Steward Observatory, indicate that the object—which is approximately the mass of Jupiter—experiences fluctuating cloud thickness. By analyzing infrared spectra captured over an 11-hour observation window, the...

to have ended the reign of the dinosaurs. Its orbit, however, remains safely bounded between the orbits of Mars and Jupiter, never approaching Earth closely enough to pose a hazard. R-band light curve of Comet 10P/Tempel 2 phased to its 8.941‑hour...

for the sky event of the year? In just one month, around August 12, 2026, six planets will line up across the morning sky: Jupiter, Mercury, Mars, Uranus, Saturn, and Neptune Look before sunrise to catch the planet parade — and don’t stop there. The...

originated from a distant, debris‑rich sector of the outer solar system or from the outer reaches of the asteroid belt near Jupiter, but the isotopic record does not yet allow a definitive source identification. Size estimates place the Chicxulub...

Juno’s first underground temperature readings of Io expose hidden heat sources fueling Jupiter’s most volcanic moon. During two close flybys in late 2023 and early 2024, NASA’s Juno spacecraft skimmed Io at a distance of roughly 1,500 km (930 mi) and...

giant WASP‑39b, a world orbiting a star roughly 700 light‑years from Earth. JWST Reveals Deuterium‑Enriched Water on a Hot Jupiter Using its full suite of four infrared instruments, JWST captured an unprecedented transmission spectrum of WASP‑39b,...

from the distant, debris‑rich outskirts of the solar system or from the outer regions of the main asteroid belt near Jupiter. The encounter represents an extraordinarily low‑probability event: a primitive body from a remote zone traversed the inner...

of the Great Square of Pegasus will remain observable. Meanwhile, early morning stargazers can look forward to viewing Jupiter and Mars, which will bookend the Cancer constellation. The celestial scene will be further enhanced by the presence of...

leading the team to theorize that the wave may still be evolving. Furthermore, the absence of similar polygonal patterns on Jupiter, another massive, turbulent gas giant, continues to baffle planetary scientists. Unanswered Questions in Planetary...

after sunset. During these favorable windows, the spacecraft reflects enough sunlight to reach a brilliance comparable to Jupiter, appearing as a steady, bright point of light moving with purpose across the dark backdrop of space. Observing the Heavenly...

Earth passes directly between the ringed planet and the Sun, maximizing its brightness. As the weeks progress, Mars and Jupiter will rise progressively earlier, drawing closer to one another until their notable conjunction on November 14. These...

gas and dust of its cradle. The subject of this study, WISPIT 2b, is a gas giant with roughly five times the mass of Jupiter. Located approximately 430 light-years away, it belongs to an elite group of planets known to remain actively tethered to the...

of this material was sent to ETH: a sample from the asteroid Bennu. (CREDIT: Erika Blumenfeld & Joseph Aebersold / NASA) Jupiter’s Role as a Cosmic Sieve The study also highlights the influence of Jupiter in shaping this chemical landscape. As the gas...

planetary formation and atmospheric behavior. Located 500 light-years away, the planet possesses the physical dimensions of Jupiter but only one-third of its mass, all while orbiting a diminutive M-dwarf star every 3.3 days. This arrangement is...

in fundamentally different ways. WISPIT 2b, which researchers estimate has already grown to roughly five times the mass of Jupiter, is actively clearing a distinct gap in the disk as it continues to gobble up material. In contrast, the less mature...

Gaia23bra b is markedly different from the close‑in worlds that dominate TESS’s catalog. The giant has roughly 1.6 times Jupiter’s mass and circles an orange‑dwarf star at a distance comparable to Jupiter’s orbit around the Sun. Its host is about 80...

religious invocation. There are also theories that suggest the symbol might have been derived from the ancient symbol of Jupiter, the Roman god of healing. In some interpretations, “Rx” is a stylized version of Jupiter's symbol, invoking divine...

Asteroids are rocky bodies that orbit the Sun, primarily found within the asteroid belt—a region located between Mars and Jupiter. These space rocks range significantly in size, from a few meters to hundreds of kilometers in diameter, and are composed...

Auroras occur when charged particles collide with a planet’s atmosphere. While auroras have been detected on Mercury, Jupiter, and other solar system planets, these were observed only from orbit. On Mars, prior detections relied on instruments measuring...