A massive collision in the Milky Way's past

Our Milky Way galaxy has probably collided or otherwise interacted with other galaxies during its lifetime; such interactions are common cosmic occurrences. Astronomers can deduce the history of mass accretion onto the Milky ...

Layout change can make licensing agreements more agreeable

Changing the layout of long and tedious software licensing agreements may not only make those agreements more understandable, but may even make the users like them more, according to Penn State researchers. Participants in ...

Decoding the gravitational evolution of dark matter halos

Researchers at Kavli IPMU and their collaborators have revealed that considering environmental effects such as a gravitational tidal force spread over a scale much larger than a galaxy cluster is indispensable to explain ...

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