WhyCosmo

  Astrophysicists have made a groundbreaking discovery that brings us closer to understanding one of the universe's most mysterious phenomena— Fast Radio Bursts (FRBs) . A new study by the Italian National Institute for Astrophysics (INAF) has confirmed that plasma bubbles are responsible for the persistent radio emissions linked to these powerful cosmic events. An artistic representation of a magnetar, surrounded by the nebula responsible for..... FRBs, which release immense energy within milliseconds, have puzzled scientists since their discovery a little over a decade ago. This latest research focused on FRB20201124A, located 1.3 billion light-years away, and uncovered that a plasma bubble surrounding a magnetar or high-accretion X-ray binary is the source of the persistent radio signals. Using the world's most sensitive radio telescope, the Very Large Array (VLA) in the USA, scientists were able to measure the weakest persistent emission ever detected for an FRB. This fi...

 The NASA/ESA Hubble Space Telescope has captured an intriguing image of the dwarf irregular galaxy NGC 5238 , located 14.5 million light-years away in the constellation Canes Venatici. At first glance, this galaxy might appear as a simple, oversized star cluster rather than a classic galaxy, but there's more to it than meets the eye. This NASA/ESA Hubble Space Telescope image captures the dwarf irregular galaxy Hubble's image reveals a complex structure teeming with countless stars and globular clusters. Astronomers believe that NGC 5238 had a close encounter with another galaxy approximately a billion years ago. This interaction likely caused the distorted shape of NGC 5238 as gravitational forces pulled and twisted the stars. The absence of a nearby galaxy suggests that NGC 5238 devoured a smaller satellite galaxy. By studying the star population within NGC 5238, astronomers hope to find traces of this consumed galaxy. Indicators include groups of stars with distinct prope...