Astronomers suspect the heart of the Milky Way may be hiding a big secret: a rapidly spinning, highly magnetic, neutron star-powered pulsar.
NASA and JPL are working hard to develop more autonomy for their Mars rovers. Both of their current rovers on Mars—MSL Curiosity and Perseverance—are partly autonomous, with Perseverance being a little more advanced. In fact, developing more autonomous navigation was an explicit part of Perseverance's mission.

