NASA's Deep Space Network radio telescopes can ping asteroids with radio waves and measure the radar waves that bounce back to get a sense of what the space rock's surface might look like.

The Dwingeloo Radio Telescope is no stranger to Amateur Radio experiments, but this one was unique. A radar image of the moon generated from LoRa Moonbounce Operating in the 70 cm Amateur Radio ...

Systems like that were very useful for measuring the radio brightness and positions in the sky of cosmic radio sources, but were less useful for imaging. Basically, those radio telescopes were ...

NASA will use the James Webb Space Telescope to gather crucial data on the size of asteroid 2024 YR4, which has a small ...