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 merger illustration

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

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