Denisovans may have dwarfed other ancient humans
Two leg bones found on the seabed near Taiwan have been identified as Denisovans, and their size suggests these hominins stood up to 190 centimetres tall.
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An ultramassive white dwarf half Earth's size may hold a rare oxygen-neon core
Astronomers have found evidence that one of the most massive white dwarfs known has an oxygen-neon core instead of the more common carbon-oxygen core. The finding is important because the composition of a white dwarf's core determines how it will evolve. A paper outlining this di
Liquid nitrogen may have recently flowed across Pluto's heart-shaped glacier
A new study led by Southwest Research Institute (SwRI) provides evidence that liquid nitrogen is rising to Pluto's surface through cracks at the northern edge of Sputnik Planitia, part of the massive heart-shaped glacier on the dwarf planet's surface. This is the first evidence o