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Exoplanetary Systems

All articles tagged with #exoplanetary systems

astronomy1 year ago

"Metal Scar: Evidence of a Dying Star's Cannibalistic Past"

Astronomers have observed the impact site where an asteroid collided with a white dwarf star, providing insight into the fate of planetary systems. The study of a "polluted" white dwarf revealed a localized region of metallic elements, indicating a single impact event rather than gradual accretion. This suggests that planets can be dragged into a white dwarf during the red giant stage, potentially foreshadowing Earth's fate as the Sun evolves. The findings highlight the diverse outcomes for planetary systems, including rogue planets, exoplanets orbiting dead stars, and the scars of planetary impacts on white dwarfs.

via Universe Today|
#asteroid-collision#astronomy#exoplanetary-systems
science2 years ago

"Interstellar Breakthrough: Scientists Uncover Vital Amino Acid for Life"

Scientists have discovered evidence of the amino acid tryptophan in the interstellar material of the IC348 star system, suggesting that protein-building amino acids are prevalent in areas where stars and planets develop. The finding, based on data from the Spitzer Space Observatory, hints at the potential for life in exoplanetary systems and may contribute to the early chemistry of planetary systems around other stars.

via SciTechDaily|
#amino-acid#exoplanetary-systems#interstellar-space
astronomy2 years ago

Webb Telescope Discovers Hidden Planets and Asteroid Belt in Fomalhaut System

NASA's James Webb Space Telescope has discovered three nested debris belts surrounding the young star Fomalhaut, located 25 light-years away. These belts, which could be carved by the gravitational forces of unseen planets, provide insights into the structure of exoplanetary systems. The dusty belts are the debris from collisions of larger bodies, analogous to asteroids and comets, and are frequently described as 'debris disks.' The inner belts, which had never been seen before, were revealed by Webb for the first time.

via SciTechDaily|
#asteroid-belt#astronomy#debris-disks