Roman Space Telescope Advances into Final Commissioning Phase
NASA’s Nancy Grace Roman Space Telescope has successfully completed its initial checkout and entered the science commissioning phase. Project scientists confirmed that the observatory is fully functional, capable of guiding, taking exposures, and slewing between targets. Test observations of dense star fields and dust-shrouded nebulae showed that the telescope's fine guidance system performs well in complex regions. The team is currently conducting test observations to characterize performance and refine image quality before transitioning to full science operations.
James Webb Space Telescope Captures Star Formation in N159
Using the James Webb Space Telescope, astronomers have imaged the LHA 120-N 159 star-forming region located 161,000 light-years away in the Large Magellanic Cloud. Data from the Near-Infrared Camera revealed details of massive stars ionizing surrounding hydrogen gas and sculpting cavities within molecular clouds. The observations allowed researchers to detect dim stars less than a tenth as massive as the Sun and distinguish young stellar objects embedded in dense filaments, offering insight into early stellar evolution in conditions similar to the early Universe.
Hubble Observations Aid Preparation for Roman Gravitational Lensing Studies
NASA’s Hubble Space Telescope has captured a gravitational lens featuring a foreground elliptical galaxy magnifying a more distant background galaxy located approximately eight billion light-years away. By studying the resulting arc-counterarc distortion, researchers can calculate the mass of the foreground object and investigate the presence of dark matter. These high-resolution Hubble observations are being used to build computer models that will help analyze wider-field data from the upcoming Nancy Grace Roman Space Telescope.
Written with AI from original reports. Source names and report dates are shown with each story.
The Cosmic Dispatch
Your weekly space newsletter: our latest video, the week’s most-watched Short, one extraordinary discovery, a surprising fact and a simulation to explore.
