Live coverage: India’s first space observatory in orbit
Japanese X-ray observatory completes decade-long mission
NASA picks candidates for new space telescope
NuSTAR discovers brilliant ‘mighty mouse’ pulsar
A NASA space telescope studying X-ray emissions from a nearby galaxy has discovered the brightest pulsar ever detected, the fast-spinning remnant of a collapsed star that shines so intensely it was initially mistaken for a massive black hole, a possible “missing link” between compact stellar-mass black holes and the unseen monsters lurking at the cores of many galaxies.