What happened
NASA's Nancy Grace Roman Space Telescope will test equipment that, if successful, will be crucial for discovering Earthlike planets. The test involves a coronagraph, a device designed to block starlight and reveal faint planets. This technology is considered a hidden technological leap within the mission.
Why it matters
The outcome of this test could determine the feasibility of future missions aimed at directly imaging Earthlike planets. If the coronagraph performs as expected, it may pave the way for more advanced observatories.