Her work advances new theories of how celestial collisions give birth to planets and their natural satellites.
Hubble telescope spots faint changes in the light from a star that could signal the presence of a moon around a distant planet.
The mathematician uses probability theory to resolve long-standing problems in statistical physics and computer science.
In the course of a year, three hoaxers published several fake academic papers. They claim they wanted to show leftist bias and low publishing standards, but they also sparked criticism of dishonesty and bad faith.
Streams of stars — relics of dwarf galaxies ripped apart by gravity — hold clues about the Milky Way's history, mass and perhaps its unseen dark matter.