Observatories Team Up to Reveal Rare Double Asteroid
Bi-static radar images of the binary asteroid 2017 YE5 from the Arecibo Observatory and the Green Bank Observatory on June 25. The observations show that the asteroid consists of two separate objects in orbit around each other.
Credit: Arecibo/GBO/NSF/NASA/JPL-Caltech
Even Phenomenally Dense Neutron Stars Fall like a Feather
Artist impression of the triple star system PSR J0337+1715, which is located about 4,200 light-years from Earth. This system provides a natural laboratory to test fundamental theories of gravity.
Credit: NRAO/AUI/NSF; S. Dagnello(more…)
