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Can Astronomers Use Radar to Spot a Cataclysmic Asteroid?

Can Astronomers Use Radar to Spot a Cataclysmic Asteroid?

A new instrument concept from the National Radio Astronomy Observatory (NRAO) called the next generation RADAR (ngRADAR) system will use the National Science Foundation’s Green Bank Telescope (GBT) and other current and future facilities to support planetary defense efforts.

Telescopes Show the Milky Way’s Black Hole is Ready for a Kick

Telescopes Show the Milky Way’s Black Hole is Ready for a Kick

The supermassive black hole in the center of the Milky Way is spinning so quickly it is warping the spacetime surrounding it into a shape that can look like a football, according to a new study using data from NASA’s Chandra X-ray Observatory and the National Science Foundation’s Karl G. Jansky Very Large Array (VLA).