Though black holes may start as strangers, interactions between several of them — not just the two component masses — can lead to LIGO-esque mergers.
It should be easy to figure out which way a pulsar is spinning, right? Wrong.
Astronomy research can be conducted in countless ways, but when’s the last time you chopped into a tree to learn about the cosmos?
A ghostly plasma lens occulting QSR J1819+3845 has been imaged directly at radio wavelengths. What can we learn about this strange interloper? (Image: unrelated observation of solar activity resembling a jack-o’-lantern, courtesy NASA/GSFC/SDO)
Yesterday’s announcement of a new LIGO detection brings the total to four confirmed events (and one candidate). Can we responsibly make conclusions about population characteristics from so few data points?