29 Cygni b Archives - Astrobiology

ESA/V. Crobu Larger image

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Tricorder Tech: ESA CAVES 2026 Cavenauts Use An Electronic FieldBook

by Keith CowingJune 25, 2026June 26, 2026

Astronauts Tracy Dyson (NASA), Rosemary Coogan (ESA) and Ayu Yoneda (JAXA) measuring water parameters and recording them in the Electronic FieldBook during ESA CAVES2026 course.

Exoplanet 29 Cygni b, seen in this artist’s concept, is a gas giant weighing about 15 times the mass of Jupiter. It orbits a type A star (shown at upper right) slightly hotter and more massive than our Sun, at an average distance of 1.5 billion miles. The star is known to possess a dusty debris disk. A hypothetical comet fragment is shown approaching the planet, while previous impacts have left dark splotches on its cloudtops, similar to what was seen from the Shoemaker-Levy 9 impact on Jupiter in our solar system. -- NASA Larger image

Astrogeology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Stellar Cartography

Webb Redefines The Dividing Line Between Planets And Stars

by Keith CowingJune 16, 2026June 16, 2026

Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the […]

Exoplanet 29 Cygni b, seen in this artist’s concept, is a gas giant weighing about 15 times the mass of Jupiter. It orbits a type A star (shown at upper right) slightly hotter and more massive than our Sun, at an average distance of 2.4 billion kilometres.-- Credit: NASA, ESA, CSA, J. Olmsted (STScI)

Astrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Gas Giants, Status Report, Stellar Cartography

Webb Redefines The Dividing Line Between Planets And Stars

by Keith CowingApril 14, 2026April 14, 2026

Planets, like those in our Solar System, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the […]