These science claims from 2019 could be big deals — if true
Findings in need of more proof include dinosaur fossils from the day a giant asteroid struck Earth and jets from stellar smashups
Neutron star mergers (the aftermath of one is shown in this illustration) may be a source of short gamma-ray bursts, a team reported in February.
O.S. SALAFIA, G. GHIRLANDA, CXC and GSFC/NASA, B. WILLIAMS ET AL