Mysterious asteroid 2015 BZ509 - currently nestling in Jupiter's orbit - became less mysterious once astronomers realized it's an immigrant, captured from another solar system.
Starting tonight and for the next several days, notice the moon's orbital motion as it sweeps by the star Regulus, the Heart of the Lion in the constellation Leo.
Photographer Karthik Easvur reminds us that our galaxy's center is 25,000 light-years away. So light from the galactic center that reached the sensor of his camera started its journey 25,000 years ago.
